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Anatomy and Physiology-Tissues
Tissues and Skin
49
Biology
Undergraduate 1
02/06/2013

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Cards

Term
Types Of Tissues
Definition

Epithelial

Connective

Muscle

Nervous

Term
Pseudostratified Columnar Epithelium
Definition

Every Cell is connected to the basement membrane

Can have goblet cells, Microvili, and cilia

 

Function: Secretion

Found: Trachea

Term
Positive Feedback
Definition

Reinforces Change

 

For example: Childbirth

Term
Negative Feedback
Definition

Reverses Change

 

 

Term
Homeostasis
Definition

Equilibrium of the body

 

"Dynamic Consistency"

Term
Layers ( Two Types)
Definition

Basal Layer- attaches to the basement membrane

 

Apical layer- Layer that faces openings

Term
Desmosomes
Definition

Contain Plaque and Adherins

Prevents epidermal cells from seperating while contraction occurs

Hardest to seperate

Term

Gap Junctions

 

Definition

Connect neighboring cells by connexons

contain connexins

Function:Communication

Term
Hemidesmosomes
Definition

Half of a Desmosome

Attaches cell to basement membrane

Contains Intergrin

Intergrins attach to lamina

Term
Adherent Junctions
Definition

Has dense layer called plaque

resists seperation of cells( adherent)

has adherins

Term
Tight Junctions
Definition

Fuse cells together

Seals off passageways in between cells to help resist leakage

Term
What are cell junctions
Definition
Contact points between the plasma membranes of tissue cells
Term
3 Primary Germ Layers
Definition

Endotherm

Ectotherm

Mesoderm

Term
How Does the body get feedback
Definition

Receptor

Control center

Effector

Term
Nervous Tissue
Definition

Detects changes in the body and responds by generating nerve impusles

Ectotherm

Term
Connective Tissue
Definition

Protects, Supports, stores fat, reserves energy, and binds organs.

Mesoderm

Term
What are Tissues?
Definition
Group of cells that all have a common purpose
Term
Muscular Tissue
Definition
Generates the physical force needed to make body structures move and generate heat
Term
Epithelial Tissue
Definition
Covers and lines organs and cavitites
Term
Stratified Squamous
Definition

Function: Protection

Found: Skin

New cells fill up with keratin then die and eventually are sloughed off

Two Types: Keratinized and Nonkeratinized

Non keratinized:

Function: exchange

Found: lining of the mouth, esophagus

 

Term
Simple Columnar Epithelium
Definition

All about exhange

Function: Secretion

Found: Kidneys( Microvili) and Uteran Tubes( Cilia)

can have cilia, microvili, goblet cells.

The non ciliated can/not have microvili

Term
simple cuboidal epithelium
Definition

Function: Secretion/ absorption

Found: Kidney Tubules

Can have cilia and microvili

Term
Simple Squamous
Definition

Thinest

Found: Air Sacs of Lungs

Function: Absorption/ Secretion

Important to serous membrane

Term
What are the three functions of the Epithelial tissue
Definition

Selective barrier

secretion

protect from external environments

Term
Stratified cuboidal epithelium
Definition

Rare

Found: Sweat glands

Function: Protection

 

Term
stratified columnar epithelium
Definition

Rare

Function: Protection/ Secretion

Has goblet cells

Term
Transitional Epithelium
Definition

Found: Urinary System

Function: Elasticity

Think bladder

Term
Glandular Epithelium
Definition

Function: Secretes hormones, and maintaining homeostasis

Exocrine Glands: Secrete products into ducts

Endocrine Glands: Secrete products into blood stream

Term
Merocrine glands ( Exocrine)
Definition
Releases its product by exocytosis and no part of gland is lost
Term
apocrine Glands
Definition

Bud their secretions off through the plasma membrane.  Only partial gland is damamged.

Found: Mammary Glands

 

Term
Halocrine Glands
Definition

Fill with product then rupture killing the cell

Found: Oil or Sebaceous Glands

Term
Extracellular Matrix
Definition

Ground Substance

Function: Support and bind cells, store water and allow exhange

Fibers

Collagen- made of collagen/ thick bundles

Elastic- Elastin/ Stretch

Reticular- Collagen/ thing/highly branched

Term
embryonic Connective Tissue
Definition

Messencchyme- gives rise to all other mature tissues, this is also the function

has mucous found in the umbilical cord

Term
Areolar Loose Connective Tissue
Definition

Most abundant

Function: Loose attachment

Contains all fibers

Found:Dermis of Skin ( packing layer)

Term
Adipose
Definition

Location: around heart and kidneys

Function: serves as energy reserve, protection

contains adipocytes

Term
Reticular Connective Tissue
Definition

Fine interlacing of reticular fibers and cells

Found: Stroma of liver

Function: Forms the stroma

Term
Dense Regular Connective Tissue
Definition

Bundles of collagen fibers are arranged parallel.

Function: Provides very strong attachment

Location: Forms Tendons

Term
Dense Irregular Connective Tissue
Definition

Collagen fibers are going different ways

Location: Places where fibers are pulled in many directions, reticular dermis of skin

Function: provides pulling strength in man different directions

Term
Elastic Connective Tissue
Definition

Contain branching elastic fibers

Recoil

Found: Lung and arteries

Function: recoil back to original shape

Term
Hyaline Cartilage
Definition

No blood supply

Surrounded by perichondrium

Location: Covers the ends of long bones

Function: provide flexability and support

Term
cartilage
Definition

dense network of collagen fibers and elastic fibers

chrondrocytes- cartilage cells

pericondrium- covering of dense irregular tissue that surrounds cartilage.

Term
Fibrocartilage
Definition

Strongest

has chondrocytes and thick bundles of collagen fibers

Lacks perichondrium

Found: Intervertebral Discs

Function: Support and joining structures together

Term
Elastic Cartilage
Definition

Has Chondrocytes with Elastic Fibers

perichondrium

Location: external ear

Function: elasticity

Term
Bone Tissue or Osseous Tissue
Definition

Compact:

Has Haversian Canal or Osteon Canal, lacunae( dark spots), osteocytes, and canaliculli( dark lines)

 

Spongy Bone:

made of plates called trabeculae

Term
Blood Tissue( Connective Tissue)
Definition

matris- plasma

has RBC- Erythrocytes

WBC- Leukocyte

Platlet- Thrombocyte

Found: Blood Vessels

Function: Erythrocytes bring in oxygen , leukocytes deal with immune system responses, and thrombocytes deal with blood clotting

Term
Skeletal Muscle
Definition

Attached to bones

HAs striations

voluntary movement

Vary in length

Found:Attached to bones

Function: Motion, posture, heat production

Term
cardiac muscle
Definition

Striations

involuntary movement

intercalated discs

Location: Heart Wall

Function: pumps blood to the body

Term
Smooth Muscle
Definition

Lines walls of hollow internal structures

Found: Iris of the eyes

Function: motion ( mostly involuntary)

Non striated

Term

Nervous Tissue

 

Definition

Two types of cells: neurons and neuroglia

Location: Nervous system

Function communications

Has dendrites and axons

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