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Tissue and Integumentary System
Anatomy and Physiology Chapter 4 and 5- test 1
355
Biology
Undergraduate 1
06/28/2016

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Term
name the four types of primary tissue
Definition
Epithelial, connective, muscle, and nervous
Term
histology
Definition
the study of tissues
Term
artifacts
Definition
minor distortions found in preserved tissue
Term
epithelial tissue or epithelium
Definition
a sheet of cells that covers a body surface or lines a body cavity
Term
the two types of epithelial tissue in the body
Definition
covering and lining epithelium

Glandular epithelium
Term
covering and lining epithelium
Definition
forms the outer layer of the skin; dips into and lines the open cavities of the urogenital, digestive, and respiratory systems; and covers the walls and organs of the closed ventral body cavity
Term
Glandular Epithelium
Definition
fashions the glands of the body
Term
Six Functions of the Epithelium
Definition
Protection, absorption, filtration, excretion, secretion, and sensory reception
Term
Five Characteristics of Epithelium
Definition
Polarity, Specialized contracts, supported by connective tissue, avascular but innervated, regeneration
Term
Polarity means
Definition
two surfaces
Term
epithelium have two surfaces
Definition
apical and basal
Term
microvilli
Definition
fingerlike extensions of the plasma membrane found on the apical surface, increasing the exposed area
Term
brush border
Definition
In epithelia that absorb or secret the microvilli are often so dense that the cell apices have a fuzzy appearance
Term
basal lamina
Definition
A thin supporting sheet adjacent to the basal surface of an epithelium.
Term
specialized contracts
Definition
except for glandular epithelia, epithelia cells fit closely together to form continuous sheets.
Term
Lateral contracts
Definition
bind adjacent cells together at many points and help keep proteins in the apical region and maintain epithelial polarity
Term
All epithelial sheets are founded on and supported by
Definition
connective tissue
Term
avascular
Definition
contains no blood vessels
Term
innervated
Definition
supplied by nerve fibers
Term
Classifications of Epithelial Tissue
Definition
Based on number of cell layers
Based on the shape
Term
Epethelium based on cell layers
Definition
Simple and stratified
Term
Simple epithelia tissue
Definition
consists of single cell layer, found where a thin epithelial barrier is desired.
Term
Stratified Epithelia tissue
Definition
Composed of two or more cell layers stacked on top of each other
Term
Tissue names based on the shape
Definition
Squamous and Cuboidal
Term
Squamous Cells
Definition
Flattened and scale like
Term
Cuboidal cells
Definition
Boxlike and approx. as tall as they are wide.
Term
Simple Squamous Epithelium
Definition
cells are flattened laterally with sparse cytoplasm
Term
Endothelium
Definition
provide a slick, friction reducing lining in lymphatic vessels and in all hollow organs of the cardiovascular system. Form capillaries
Term
Mesothelium
Definition
epithelium found in serous membranes, the membranes lining the ventral body cavity and covering its organs
Term
simple cuboidal epithelium
Definition
consists of a single layer of cells as tall as they are wide. Important functions are absorption and secretion. Form the walls of the smallest ducts of glands and of many kidney tubules.
Term
Simple Columnar Epithelium
Definition
single layer of tall closely packed cells. Lines digestive tract from the stomach through the rectum. Mostly responsible for absorption and secretion
Term
The secretion and the digestive tract lining has two modifications that make ideal for that-
Definition
Dense microvilli on the apical surface of absorptive cells

Tubular glands made primarily of cells that secrete mucus-containing intestinal juice.
Term
vary in height. All of its cells rest on the basement membrane but only the tallest reach the free surface of the epithelium. Since nuclei lie at differ levels the tissue gives the false (pseudo) impression that several cellular layers are present. The short cells are mostly unspecialized and give rise to taller cells.
Definition
Pseudostratified Columnar Epithelium
Term
most widespread stratified epithelia. Free surface squamous; deeper layers cuboidal or columnar. Several layers- thick
Definition
Stratified Squamous Epithelium
Term
rarely found in the body- mostly found in the ducts of larger glands (sweat and mammary). Typically has two layers of cells.
Definition
Cuboidal
Term
not found much in the body- pharynx, male urethra, and lining some glandular ducts. Occurs at transition areas or junctions between two other types of epithelia.
Definition
Columnar
Term
forms the lining of hollow urinary organs. Cells of its basal layer are cuboidal or columnar. The apical cells vary in appearance, depending on the degree of distension of the organ. When distended the transitional epithelium thins from about six cell layers to three and its domelike apical cells flatten and become squamous-like.
Definition
Transitional Epithelium
Term
consists of one or more cells that make and secrete a particular product called a secretion which is a water-based fluid that usually contains proteins, with variation. Secretion is an active process.
Definition
Glandular Epithelia
Term
Glands are classified to two sets of traits
Definition
where they release their products and number of cells
Term
Endocrine Glands
Definition
ductless glands that produce only hormones
Term
Exocrine glands
Definition
secrete their products onto body surfaces via ducts
Term
Two types of exocrine glands
Definition
unicellular exocrine glands and multicellular exocrine glands
Term
unicellular exocrine glands
Definition
glands that produce mucin, goblet cells
Term
two basic parts of multicellular exocrine glands
Definition
epithelium derived duct and a secretory unit
Term
Multicellular exocrine glands are classified by
Definition
structure and type of secretion
Term
Structural classification of Multicellular exocrine glands
Definition
simple or compound. Simple have unbranched duct.
Term
multicellular secretory classification
Definition
tubular if secretory cells form tubes
alveolar if secretory cells form small, flasklike sacs
tubuloalveolar if they have both types of secretory units
Term
modes of secretion
Definition
merocrine, holocrine, apocrine
Term
merocrine
Definition
secrete their products by exocytosis- sweat, pancreas, salivary
Term
holocrine
Definition
accumulate their products within and then rupture- oil glands
Term
apocrine
Definition
debatable in humans- accumulate beneath free surface, the apex of the cell pinches off releasing secretion and cytoplasm
Term
It is the most abundant and widely distributed of primary tissues
Definition
Connective Tissue
Term
four main classes of connective tissue
Definition
connective tissue proper, cartilage, bone, blood
Term
five main functions of connective tissue
Definition
binding and supporting, protecting, insulating, storing reserve fuel, transporting substances within the body
Term
common characteristics of connective tissue
Definition
common origin, degrees of vascularity, extracellular mix
Term
common origin of connective tissue
Definition
all connective tissues arise from mesenchyme (an embryonic tissue)
Term
Degrees of vascularity of connective tissue
Definition
can be a vascular (like cartilage), poorly vascularized, or have a rich supply of blood vessels.
Term
composed of largely nonliving extracellular matrix, which separates the living cells of the tissue. It’s because of this matrix that connective tissue can bear weight, withstand tension, etc. that no other tissue can handle. This matrix consists of ground substance and fibers.
Definition
Extracellular matrix
Term
Structural elements of connective tissue
Definition
Ground substance, connective tissue fibers, connective tissue cells, other cell types
Term
components of ground substance
Definition
interstitial fluid, cell adhesion proteins, proteoglycans
Term
three connective tissue fibers
Definition
Collagen fibers, elastic fibers, reticular fibers
Term
strongest of all three fibers. Constructed primarily of protein collagen. Collagen molecules are secreted into the extracellular space, where they assemble spontaneously into cross-linked fibrils, which in turn are bundled together into the thick collagen fibers seen with a microscope. Extremely tough with high tensile strength because of the cross link.
Definition
collagen
Term
- Long, thin elastic fibers form branching networks in the extracellular matrix. Contain rubberlike protein, elastin, that allows them to stretch and recoil like rubber bands. Can only stretch so much before it becomes taut, then when the tension eases the elastic fibers return to normal. Found in areas where greater elasticity is needed- skin, lungs, blood vessel walls.
Definition
elastic fibers
Term
Short, fine, collagenous fibers have a slightly different chemistry and form. Continuous with collagen fibers branching extensively and forming delicate networks that surround small blood vessels and support the soft tissue of organs. They are abundant where connective tissue is next to other tissue types.
Definition
Reticular Fibers
Term
-cyte
Definition
mature form of cells
Term
-blast
Definition
immature form of cells
Term
primary blast cell type for connective tissue proper
Definition
fibroblast
Term
primary blast cell type for cartilage
Definition
chondroblast
Term
primary blast cell type for bone
Definition
osteoblast
Term
fat cells
Definition
store nutrients
Term
white blood cells
Definition
neutrophils, eosinophils, lymphocytes. These are concerned with tissue response to injury
Term
These oval cells detect foreign microorganisms and initiate local inflammatory responses against them
Definition
mast cells
Term
large, irregularly shaped cells that devour a broad variety of foreign materials including dead tissue cells.
Definition
macrophages
Term
Types of connective tissue proper
Definition
loose connective tissue and dense connective tissues
Term
types of loose connective tissue
Definition
areolar connective tissue, adipose tissue, reticular connective tissue
Term
functions include supporting and binding other tissues, holding body fluids, defending against infections, storing nutrients as fat in adipocytes
Definition
areolar connective tissue
Term
flat branching cells that appear spindle shaped in profile predominate but macrophages are also seen and present a barrier to invading microorganisms
Definition
fibroblasts
Term
most epithelia rest on _______ and it is present in all mucous membranes
Definition
Areolar connective tissue
Term
Scanty matrix. Richly vascularized. Shock absorption, insulation, and energy storage. It may develop anywhere areolar tissue is plentiful but usually accumulates in subcutaneous tissue where it acts as a shock absorber, insulation, and energy storage site.
Definition
adipose tissue
Term
resembles areolar connective tissue but the only fibers in its matrix are reticular fibers which form a network along with fibroblasts called reticular cells are scattered. Widely distributed throughout the body but limited to certain sites. It forms an internal framework, called stroma, that can support many free blood cells in lymph nodes, spleen, and bone marrow.
Definition
reticular connective tissue
Term
types of dense connective tissue
Definition
Dense regular connective, dense irregular connective, elastic connective
Term
contain closely packed bundles of collagen gibers running in the same direction, parallel to the direction of pull resulting in white, flexible structures with resistance to tension.
Definition
Dense regular connective tissue
Term
bundles of collagen are much thicker and arrange in more than one plane
Definition
Dense irregular connective tissue
Term
these are the few ligaments, like those connecting adjacent vertebrae, are elastic.
Definition
Elastic connective tissue
Term
stands up to tension and compression, with qualities between those of dense connective tissue and bone
Definition
cartilage
Term
lacks nerve fibers and is avascular, receiving nutrients by diffusion from blood vessels located in the connective tissue layer (perichondrium) surrounding it. It is up to 80% water so it can rebound after compression.
Definition
cartilage
Term
three types of cartilage
Definition
hyaline, elastic, fibrocartilage
Term
the most common cartilage in the body aka gristle. Provides firm support with some pliability. It covers the ends of long bones as articular cartilage providing springy pads that absorb compression at joints. Only going to see chondrocytes.
Definition
Hyaline cartilage
Term
nearly identical to hyaline cartilage except it has more elastic fibers. It is ground where strength and exceptional stretchability are needed. Found in outer ear and epiglottis.
Definition
elastic caritlage
Term
intermediate between the other cartilages connective tissues. Compressible and resists tension well, it is found where strong support and the ability to withstand heavy pressure are required
Definition
fibrocartilage
Term
osseous tissue has an ability to support and protect body structures. Provide cavities for storing fat and synthesizing blood cells. It is similar to that of cartilage but is harder and more rigid because it has an added matrix element- inorganic calcium salts.
Definition
bone
Term
two types of bone
Definition
compact and spongy
Term
the fluid within blood vessels is the most atypical connective tissue that does not connect things or give mechanical support but is still classified as a connective tissue because it develops from mesenchyme
Definition
blood
Term
this tissue produces movement
Definition
muscle
Term
It is highly cellular, well-vascularized and responsible for most types of body movement
Definition
muscle
Term
elaborate networks of the actin and myosin filaments that bring movement/contraction in all cell type
Definition
myofilaments
Term
three types of muscle tissue
Definition
skeletal, cardiac, smooth
Term
- packaged by connective tissue sheets into organs called skeletal muscles that are attached to the bones of the skeleton. These muscles form the flesh of the body, and as they contract they pull on bones or skin, causing body movements
Definition
Skeletal muscle tissue
Term
found only in the walls of the heart- involuntary. It helps propel blood through the blood vessels to all parts of the body thorough contractions. The cells are striated
Definition
cardiac muscle
Term
the cells have no visible striations. The cells are spindle shaped and contain one centrally located nucleus. Mainly found in the walls of hollow organs other than the heart. Squeezes substances through these organs by contracting/relaxing. Involuntary. Come to a point at both ends.
Definition
smooth muscle
Term
the main component of the nervous system
Definition
nervous tissue
Term
two types of nervous tissue
Definition
neurons and supporting cells
Term
highly specialized nerve cells that generate and conduct nerve impulses
Definition
neurons
Term
glial cells or neuroglia are non-conducting cells that support, insulate, and protect the delicate neuron
Definition
supporting cells
Term
these incorporate more than one type of tissue
Definition
membranes
Term
three types of membranes
Definition
cutaneous, mucous, and serous
Term
keratinized stratified squamous epithelium (epidermis) attached to a thick layer of connective tissue. Dry membrane
Definition
Cutaneous Membrane
Term
, line all body cavities that open to the outside of the body. They are wet membranes bathed by secretions. Most mucosae contain either stratified squamous or simple columnar epithelia. The epithelia sheet lies directly over a layer of loose connective tissue called the lamina propria.
Definition
Mucous membranes
Term
the moist membranes found in closed ventral body cavities. It consists of simple squamous epithelium resting on a thin layer of loose areolar tissue.
Definition
Serous membrane
Term
steps of tissue repair
Definition
inflammation, organization, regeneration
Term
Epithelial tissues, bone, areolar connective tissue, dense irregular connective tissue, blood-forming tissue
Definition
tissue regenerates well
Term
Smooth muscle and dense regular connective tissue
Definition
Moderate regenerating capacity
Term
Cardiac muscle and nervous tissue of brain and spinal cord
Definition
virtually no regenerative capacity
Term
Skin consists of two distinct regions called
Definition
Epidermis and dermis
Term
the subcutaneous tissue just deep to the skin is known as the
Definition
hypodermis (super fascia)
Term
the integumentary system is made up of what
Definition
the skin and its derivatives (sweat and oil glands, hair, and nails
Term
Epidermis is made up of what kind of cell
Definition
Stratified Squamous epithelium
Term
Epidermis
Definition
superficial region of the skin
Term
Dermis
Definition
Underlies epidermis, mostly connective tissue
Term
the two layers of the dermis
Definition
capillary and reticular
Term
true or false- the hypodermis is part of the skin?
Definition
false
Term
Anchors skin to underlying structures
Definition
hypodermis
Term
Five layers of the epidermis
Definition
Stratum basale
Stratum spinosum
Stratum Granulosum
Stratum lucidum
Stratum corneum
Term
the deepest layer of the epidermis
Definition
stratum basale
Term
several layers thick, attached to desmosomes, prickly layer
Definition
Stratum spinosum
Term
typically five layers of flat cells
Definition
stratum granulosum
Term
this layer helps form keratin in upper layers
Definition
Stratum Granulosum
Term
clear layer only found in thick skin
Definition
stratum lucidim
Term
most superficial layer consisting of 20-30 layers of dead cells
Definition
Stratum corneum
Term
Four cell types when dealing with skin
Definition
keratinocytes, melanocytes, dendritic cells, Tactile cells
Term
produce fibrous protein keratin, most epidermis cells consist of this, tightly connected by desmosomes
Definition
keratinocytes
Term
produce pigment melanin
Definition
melanocytes
Term
Macrophages- key activators of immune system
Definition
dendritic cells
Term
sensory tough receptors
Definition
tactile cells (merkel cells)
Term
cells change from stratum basale to stratum corneum through
Definition
apoptosis (cellular suicide)
Term
strong, flexible connective tissue
Definition
dermis
Term
True or false- the dermis contains nerve fibers, blood and lymphatic vessels
Definition
true
Term
the Papillary layer is part of which portion of the skin
Definition
dermis
Term
the Reticular layer is part of which portion of the skin
Definition
Dermis
Term
areolar connective tissue with collagen and elastic fibers and blood vessels that provide nourishment to epidermis through diffusion
Definition
papillary
Term
Superficial peg-like projections that create fingerprints and touch receptors
Definition
dermal papillae
Term
about 80% of dermal thickness
Definition
reticular layer
Term
cleavage lines are found here
Definition
Reticular layer
Term
Dermal fold at or near joints where skin cannot slide easily
Definition
flexure lines
Term
Striae
Definition
silvery-white scars, stretch markings, dermal tears
Term
Three pigments contribute to skin color
Definition
Melanin, Carotene, Hemoglobin
Term
Where is melanin produced?
Definition
melanocytes
Term
yellow to orange pigment, accumulates in stratum corneum and hypodermis
Definition
carotene
Term
pinkish hue of fair skin
Definition
Hemoglobin
Term
blue skin color- low oxygenation of hemoglobin
Definition
cyanosis
Term
Fever, hypertension, inflammation, allergy
Definition
Erythema
Term
Anemia, low blood pressure, fear, anger
Definition
pallor
Term
liver disorder, yellow cast
Definition
jaundice
Term
inadequate steroid hormones in Addison's disease
Definition
Bronzing
Term
clotted blood beneath skin
Definition
bruise
Term
dead keratinized cells of hard keratin
Definition
hair
Term
functions of body hair
Definition
warn of insects on skin, physical trauma, heat loss, sunlight
Term
determined by the amount of melanin we produce
Definition
hair pigments
Term
lots of mitosis happens here and this is where hair grows from
Definition
hair follicles
Term
hair follicles grow from the
Definition
dermis
Term
types of hair
Definition
Vellus and Terminal
Term
pale, fine body hair of children and adult females
Definition
vellus
Term
coarse long hair of eyebrows and scalp, also starts at puberty
Definition
terminal
Term
hair follicles have a two layered wall
Definition
part dermis and part epi-dermis
Term
smooth muscle attached to the follicle (responsible for the goose bump_
Definition
arrector pili
Term
sensory nerve endings are found here
Definition
hair bulb
Term
hair thinning in both sexes after age 40
Definition
Alopecia
Term
determined by gene on x chromosome
Definition
true (frank) baldness
Term
treatments for baldness
Definition
minoxidil and finasteride aka rogaine and propecia
Term
hardened parts of the epidermis that stick out to protect fingers and toes
Definition
nails
Term
aka sudoriferous glands
Definition
sweat glands
Term
how many sweat glands per person?
Definition
3 million
Term
two main types of sweat glands
Definition
eccrine (merocrine) and apocrine
Term
most numerous type of sweat gland, their secretion is 99% water plus salts, vit. c, antibodies, etc
Definition
eccrine
Term
sweat glands confined to axillary and anogenital areas, cause odor on the body when secretion comes in contact with bacteria
Definition
apocrine
Term
two types of modified apocrine glands
Definition
Ceruminous glands- secrete earwax
mammary glands- secrete milk
Term
widely distributed glands that secrete into hair follicles, stimulated by hormones, especially androgens
Definition
sebaceous glands
Term
Functions of the integumentary system
Definition
protection, body temperature regulation, cutaneous sensation
Term
Skin acts as protection in three barriers
Definition
chemical, physical, and biological
Term
biological barriers of the skin
Definition
dendritic cells, macrophages, and DNA
Term
Physical barriers of the skin protect against _______ but not ________.
Definition
water soluble but not lipid soluble substances
Term
these things have limited penetration of the skin
Definition
plant oleoresins, organic solvents, salts of heavy metals, some drugs, and drug agents
Term
your body releases 500 ml/day of this
Definition
insensible perspiration
Term
when cold your body has these reactions
Definition
dermal vessels constrict and skin temp drops to maintain core temperature
Term
detect temperature, touch, and pain
Definition
cutaneous sensory receptors
Term
cutaneous sensation has four things involved
Definition
cutaneous sensory receptors, metabolic functions, blood reservoir, and excretion
Term
three major types of skin cancer
Definition
basal cell carcinoma, squamous cell carcinoma, and melanoma
Term
least common cancer, stratum basal cells proliferate and invade dermis and hypodermis
Definition
basal cell carcinoma
Term
involves keratinocytes of stratum spinosum, usually occurs on face, neck, hands, or arm
Definition
squamous cell carcinoma
Term
cancer of melanocyte, use ABCD rule for detection
Definition
Term
two partial thickness burns
Definition
first degree and second degree
Term
first degree burn
Definition
epidermal damage only
Term
second degree burn
Definition
epidermal and upper dermal damage
Term
third degree burn is critical if
Definition
, >25% of body has second-degree burns, >10% of body has third-degree burns, Face, hands, or feet bear third-degree burns
Term
A single layer of epithelial tissue is classified as _________.
Definition
simple
Term
Goblet cells are found in this kind of epithelium:
Definition
columnar
Term
All of the following are usually characteristics of epithelium except:
Definition
abundant extracellular material
Term
Which epithelium is the most widespread epithelium?
Definition
stratified squamous
Term
Glands that secrete by rupturing are classified as __________.
Definition
holocrine
Term
Which of the following is not a connective tissue?
adipose, blood, bone, skin
Definition
skin
Term
Calcium salts are found in which connective tissue?
Definition
bone
Term
This is the most widespread connective tissue and serves as filler material between other tissues.
Definition
areolar
Term
Which of the following is not associated with cartilage?

a. chondrocytes
b. lacunae
c. blood vessels
d. collagen fibers
Definition
blood vessels
Term
Which of the following is not part of the extracellular matrix?

a. protein fibers
b. fibroblasts
c. fluids
d. glycosaminoglycans
Definition
fibroblasts
Term
The two contractile proteins found in muscle cells are:
Definition
actin and myosin
Term
Which type of muscle is voluntary?

a. skeletal
b. cardiac
c. smooth
d. skeletal and cardiac
Definition
skeletal
Term
Multinucleated cells are found in which muscle tissue?
Definition
skeletal
Term
Which muscle type has no visible striations?
Definition
smooth
Term
Intercalated discs are a unique feature of which muscle tissue?
Definition
cardiac
Term
Membranes that line open body cavities are classified as _______.
Definition
mucous
Term
Body membranes are usually composed of which two tissues?
Definition
epithelial and connective
Term
Which of the following is classified as a dry membrane?

a. cutaneous
b. mucous
c. synovial
d. serous
Definition
cutaneous
Term
During organization of tissue repair, a blood clot is replaced by ___________.
Definition
granulation tissue
Term
Regeneration is highly unlikely in which tissue?
Definition
cartilage
Term
Of the four major types of tissues, which type forms boundaries between different environments?
Definition
epithelium
Term
Gland that secrete by exocytosis are classified as _________.
Definition
merocrine
Term
Of the four major tissue types, which type is avascular?
Definition
epithelium
Term
Stroma consists of what specific tissue type?
Definition
reticular connective tissue
Term
The epiglottis and external ear are composed of which kind of cartilage?
Definition
elastic
Term
Chemotherapy destroys cells in mitosis. Use the knowledge you have gained from class to choose the tissue that you believe would be most affected by chemotherapy.
Definition
epithelium
Term
Which layer of the skin has no blood vessels?
Definition
Epidermis
Term
Which layer is not part of your skin?
Definition
Hypodermis
Term
What percentage of the body weight in the average adult is from the skin?
Definition
18%
Term
All of the following contribute to skin color
except: ________.

hemoglobin
carotene
keratin
melanin
Definition
keratin
Term
This layer of the skin is responsible for our fingerprints.
Definition
Papillary dermis
Term
Mitosis occurs primarily in which stratum of the epidermis?
Definition
Basale
Term
What protein found throughout the epidermis gives the epidermis its protective properties?
Definition
Keratin
Term
Which cells in the epidermis are key activators of the immune system?
Definition
Dendritic cells
Term
Dogs track humans by the scent of epithelial cells that are constantly being shed. These cells are shed from which stratum?
Definition
Corneum
Term
In which layer of the epidermis would you expect to find the healthiest cells?
Definition
Basale
Term
The dermis is composed of what type of tissue?
Definition
Connective
Term
Which of the following is not associated with the dermis?
Definition
Keratin
Term
Which layer of the dermis is composed of dense irregular connective tissue?
Definition
Reticular layer
Term
Which layer of the dermis is closest to the epidermis?
Definition
Papillary
Term
Peglike folds of the superficial layer of the dermis are called dermal ________.
Definition
papillae
Term
Sudoriferous glands are also known as _________ glands.
Definition
sweat
Term
What is sweat mostly composed of?
Definition
Water
Term
The sweat glands that are important in body temperature regulation are the ______ glands
Definition
eccrine
Term
This gland, found in the skin, is also a holocrine gland.
Definition
Sebaceous
Term
Which of the following is not an accessory gland of the skin?

Sebaceous
Ceruminous
Mammary
All are accessory glands of the skin.
Definition
All are accessory glands of the skin.
Term
Hair and nails are modifications of the ________.
Definition
epidermis
Term
The protein found in our hair and nails is ________.
Definition
keratin
Term
The smooth muscle associated with a hair follicle is called _________.
Definition
arrector pili
Term
All of the following are associated with hair except _________.

cuticle
matrix
medulla
lunule
Definition
lunule
Term
Which of the following is not associated with nails?
Definition
medulla
Term
When people gain weight, they often also gain inches due to an accumulation of fat in which layer?
Definition
Hypodermis
Term
During the process of tissue repair, what process produces scar tissue?
Definition
fibrosis
Term
Embryonic ectoderm develops into which of the following major tissue types?
Definition
epithelial tissue and nervous tissue
Term
What type of tissue forms tendons?
Definition
dense regular connective tissue
Term
The basement membrane is located between which tissue types?
Definition
epithelial and connective tissues
Term
Which of the following types of epithelial tissue lines the interior of blood vessels?
Definition
simple squamous endothelium
Term
Which of the following is a unicellular gland associated with mucus production?
Definition
goblet cell
Term
Which of the following apical epithelial cell structures function(s) in the movement of materials across the surface of the cell?
Definition
cilia
Term
Which of the following descriptions best describes a squamous-shaped cell
Definition
a flattened, scale-like cell
Term
Which of the following epithelial tissue types is best adapted for the rapid transport of materials across its membranes?
Definition
simple squamous
Term
Which of the following is NOT a function of areolar connective tissue?
Definition
movement of body parts
Term
characterizes epithelial tissue?
Definition
It exhibits polarity.
Term
All connective tissues share what features in common?
Definition
mesenchymal origin and secretion of ground substance
Term
Which tissue lines the majority of the digestive tract, from stomach to rectum?
Definition
simple columnar
Term
Which of the following types of epithelial tissue provides the greatest amount of protection from rubbing, wear, and tear?
Definition
stratified squamous
Term
Transitional epithelium can be found in which body system?
Definition
urinary
Term
Which fiber is the strongest, with the greatest tensile strength due to cross-linked fibrils?
Definition
collagen
Term
Mucous that protects your stomach lining is secreted by which type of epithelial cell?
Definition
simple columnar
Term
What type of connective tissue provides support and protection for body structures and is a site for synthesizing blood and fat storage?
Definition
osseous tissue
Term
Which of the following regulates and controls body functions?
Definition
nervous tissue
Term
Which of the following is found on the surface of the skin?
Definition
stratified squamous epithelium
Term
Which cells secrete the ground substance of cartilage?
Definition
chondroblasts
Term
Microvilli are found on the __________ surface of the epithelial cells.
Definition
apical
Term
Which type of muscle is unstriated, unbranched, involuntary, spindle shaped, and found in the walls of most hollow organs?
Definition
smooth
Term
The presence of keratin in integument provides a tough protective characteristic to __________.
Definition
stratified squamous epithelium
Term
Which of the following exocrine glands stores its secretion until the gland ruptures?
Definition
a holocrine gland
Term
Connective tissue arises from which of the following embryonic tissues?
Definition
mesoderm
Term
Which of the following individuals would have the greatest concentration of brown fat?
Definition
young infants
Term
A flat, sheetlike tendon that connects muscle to bone is known as __________.
Definition
an aponeurosis
Term
A multicellular gland with round secretory cells and branching ducts is described as __________.
Definition
alveolar, compound, and exocrine
Term
The stroma of most lymphoid organs is composed of ___________.
Definition
reticular connective tissue
Term
Why are histological sections stained?
Definition
to enhance contrast
Term
Polarity is a property of all normal epithelial tissues. True or False?
Definition
True
Term
The role of microvilli is to __________.
Definition
increase surface area
Term
Epithelial tissues are innervated and usually vascularized. True or False?
Definition
False
Term
function of stratified Sqaumous
Definition
protection from wear and tear
Term
function of simple squamous
Definition
filtration and diffusion
Term
function of simple cuboidal
Definition
secretion and absorption
Term
functional of transitional epithelium
Definition
stretching
Term
You observe a tissue that has cells of varying heights. At first glance, it appears that the tissue has multiple cell layers, but upon closer investigation you see that all of the cells attach to the same basement membrane. What classification would you give to this epithelial tissue?
Definition
pseudostratified columnar epithelium
Term
What is the role of an exocrine gland?
Definition
to secrete substances onto body surfaces or into body cavities
Term
You observe a multicellular gland with branched ducts and saclike secretory areas. What type of gland would this most likely be?
Definition
a compound alveolar exocrine gland
Term
A sebaceous (oil) gland of the skin must completely rupture to release its secretory products. Thus, this type of gland is considered to be __________.
Definition
a holocrine gland
Term
__________ are important and common unicellular exocrine glands.
Definition
Goblet cells
Term
It is a complex glycoprotein found in mucus.
Definition
Mucin
Term
Which of the following is NOT a type of connective tissue?
Definition
transitional
Term
Which of the following statements about collagen is true?
Definition
Collagen is a fibrous protein that provides tensile strength to certain connective tissues.
Term
Function of osteoblasts
Definition
bone formation
Term
Function of hematopoietic stem cells
Definition
blood cell formation
Term
Function of chondroblasts
Definition
formation of cartilage
Term
Function of fibroblasts
Definition
formation of connective tissue proper
Term
Function of white blood cells
Definition
body's defense system
Term
what is a role of connective tissue?
Definition
transportation of bodily substances
Term
Macrophages are phagocytic cells. True or false
Definition
True
Term
The best classification of adipose tissue is __________.
Definition
a loose connective tissue
Term
All connective tissues arise from a common embryonic tissue called mesenchyme. True or False?
Definition
True
Term
Neurons are cells that are involved in __________.
Definition
responding to stimuli
Term
Which type of muscle tissue has intercalated discs and is involuntarily controlled?
Definition
cardiac muscle
Term
The skin is a __________ membrane.
Definition
cutaneous
Term
What “sets the stage” for tissue repair?
Definition
inflammation
Term
All of the body's organs are derived from three primary germ layers. Which of the primary germ layers can produce epithelial tissues?
Definition
Ectoderm, endoderm, and mesoderm can all give rise to epithelial tissues.
Term
what is the correct order of the layers of the epidermis in thick skin from deep to superficial?
Definition
stratum basale, stratum spinosum, stratum granulosum, stratum lucidum, stratum corneum
Term
name the function of tactile (merkel) cells
Definition
sensory detection
Term
name the function of hypodermis
Definition
skin anchoring
Term
name the function of melanin
Definition
protection from UV radiation
Term
name the function of dendritic cells
Definition
activation of the immune system
Term
name the function of keratinocytes
Definition
production of fibrous protein for skin protection
Term
True or false: Keratin protects the skin from the damaging effects of ultraviolet (UV) radiation.
Definition
false
Term
The role of ceruminous glands is to __________.
Definition
produce earwax
Term
If an individual were unable to produce sebum, what problem would he or she most likely develop?
Definition
He or she would have brittle, more easily broken hair.
Term
Apocrine sweat glands __________.
Definition
begin functioning at puberty
Term
true or false: For humans, food is the only source of vitamin D.
Definition
false
Term
The region deep to the skin is the __________.
Definition
hypodermis
Term
If dermal papillae were missing, then __________.
Definition
friction ridges would be absent
Term
One main difference between thin skin and thick skin is that __________.
Definition
in thin skin, the stratum lucidum appears to be absent
Term
Sebaceous glands secrete what?
Definition
sebum
Term
mammary glands secrete what?
Definition
milk
Term
Sudoriferous glands secrete what?
Definition
sweat
Term
Ceruminous glands secrete what?
Definition
Cerumen
Term
True or false: Keratin is found in hair and nails.
Definition
True
Term
Hirsutism is a condition that is characterized by __________.
Definition
excessive hairiness
Term
True or false: Follicles that give rise to eyebrows remain active longer than follicles of the scalp.
Definition
false
Term
True or False: Skin does not have a role in regulating body temperature.
Definition
false
Term
Melanoma is particularly dangerous because __________.
Definition
it grows rapidly and metastasizes
Term
A sunburn is generally classified as being __________.
Definition
a first-degree burn
Term
An injection is administered through the skin using a hypodermic needle. Identify the first integumentary structure through which the needle will pass.
Definition
epidermis
Term
Sebaceous glands are not located in these areas-
Definition
palms and soles
Term
Sebaceous glands belong to which of the following classes?
Definition
simple branched alveolar
Term
Terminal hair is located in all of the following areas EXCEPT the __________.
Definition
body hair of females
Term
The reticular layer of the dermis is composed of which tissue type?
Definition
dense irregular connective tissue
Term
The epidermis is composed of which of the following tissues?
Definition
keratinized stratified squamous epithelial tissue
Term
What is the primary function of melanin?
Definition
to provide protection against the sun's UV rays
Term
list the sequence of epidermal layers of thick skin, from deep to superficial?
Definition
stratum basale, stratum spinosum, stratum granulosum, stratum lucidum, and stratum corneum
Term
Adipose tissue is concentrated in which of the following layers?
Definition
hypodermis
Term
Which of the following cells would NOT be present in the dermis?
Definition
keratinocytes
Term
What epidermal components possess a waterproofing glycolipid that functions in preventing water loss?
Definition
lamellar granules
Term
Which integumentary gland is believed to function as a sexual scent gland?
Definition
apocrine sudoriferous gland
Term
What is the only pigment synthesized in the skin?
Definition
melanin
Term
Which of the following is NOT strictly a component of the integumentary system?
Definition
hypodermis
Term
What structures are primarily responsible for fingerprints?
Definition
epidermal ridges and sweat pores
Term
Which of the following thick skin strata is the thickest?
Definition
stratum corneum
Term
Skin eruption produced by dilated small blood vessels of the face, especially on the nose and cheeks, is descriptive of which skin disorder?
Definition
rosacea
Term
Which of the following layers of skin is avascular and relies on capillaries in the underlying connective tissue to provide nutrients?
Definition
stratum basale
Term
The epidermis develops from which embryonic germ layer?
Definition
ectoderm
Term
Which of the following cells is part of the immune system?
Definition
Langerhans cell
Term
Which of the following cells function as sensory receptors for touch?
Definition
Merkel cells
Term
Keratinocytes in the stratum spinosum are known as __________.
Definition
prickle cells
Term
What type of skin cancer affects cells of the stratum spinosum?
Definition
squamous cell carcinoma
Term
Striae in the skin are caused by __________.
Definition
dermal tears
Term
A hematoma in the skin appears as __________.
Definition
black and blue marks
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