Shared Flashcard Set

Details

The integument and related structures
membranes and skin
59
Anatomy
Undergraduate 1
09/03/2015

Additional Anatomy Flashcards

 


 

Cards

Term
membrane
Definition
epithelium plus connective tissue
Term

4 membrane types

CMSS

Definition
cutaneous, mucous, serous, synovial
Term
cutaneous type
Definition
integument (skin)
Term
mucous (mucosae)
Definition
line internal passages
Term
Serous
Definition
line body cavities
Term
synovial
Definition
line joints
Term

6 functions of the integument

HEDPSD

Definition
HEPPSS 1. homeostatis 2. excretion of waste 3. protection 4. prevents Desiccation(drying out) 5. sensory input 6. synthesis of vitamin D3
Term
3 main layers of the integument
Definition
cutaneous membrane dermis hypodermis(subcutaneous layer)
Term
hypodermis
Definition
subcutaneous layer - adipose tissue
Term
dermis
Definition
thin layer of areolar connective tissue over dense irregular connective tissue
Term
epidermis define
Definition
keratinized stratified squamous epithelium
Term
3 characteristics of epidermis
Definition
dominant cell - keratinocyte
avascular
4-5 layers
Term
4 layers of epidermis
Definition
Best Singers Go Loud Clearly
Stratum basale
Stratusm Spinosum
Stratum Granulosum
Stratum Lucidum
Stratum Corneum
Term
Stratum Basale characteristics
Definition
Mitotically active,
deepest layer,
interlock with dermis
may contain melanocytes
Term
stratum spinosum(spiny layer)characteristics
Definition
bulk of epidermis
8-10 layers of keratinocytes
cells joined by desmosomes
Term
stratum granulosum (grainy layer) characteristics
Definition
thickness varies
filled with keratohyalin
cells start dehydrating and organelles begin to disintergrate
Term
stratum Lucidum (clear layer) characteristics
Definition
only in thick skin
Term
stratum corneum characteristics
Definition
cell remnants filled with keratin
water resistant
Term
2 main types of keratin
Definition
hard in claws
soft in joints
differ in amount of sulfur and lipid association
Term
melanin
Definition
brownish, yellow-brown or black pigment
made by melanocytes in the stratum basale from tyrosine
Term
pigment granules packaged into ___________
Definition
melanosomes
Term
melanosomes are transferred to ___________
Definition
keratinocytes
Term
skin color dependent on
Definition
rate of melanin production not # of melanocytes
Term
melanin production controlled by
Definition
pituatary gland
Term
melanosomes protect from and where stay
Definition
uv radiation and stay around cell nuclei
Term
cholecalciferol vitamin d3 synthesis
Definition
sun activates dehydrocholesterol in skin which liver makes d3
kidneys make calcitrol from d3
allow absorbtion of calcium from intestines
promotes bone mineralization
Term
rickets
Definition
vitamin d3 deficiency
Term
dermis
Definition
largest part of the skin
contains all the "stuff"
Term
dermis content
Definition
80% dense irregular connective tissue
some loose aerolar connective tissue and elastic fibers
arranged in parallel bundles that create tension lines - cut with tension
Term
hypodermis
Definition
subcutaneous layer not a true skin layer
Term
hypodermis characteristics
Definition
mostly adipose
attaches to dermis to fascia and muscle and periosteum of bone
very loose to allow movement
superficial layer has lots of blood vessels and nerves
not many in deep layers so good for injections
Term
3 layers of planum nasale
Definition
no stratum lucidum or stratum granulosum
Term
3 types of integumentary glands
Definition
sebaceous glands
anal glands
sweat glands
Term
paw pads characteristics
Definition
thick corneum
have lucidum layer
exocrine sweat gland
Term
sebaceous glands characteristics
Definition
not in paw pads
most empty to hair follicles
produce sebum
can clog
Term
sweat glands characteristics
Definition
over whole body
product mostly water some waste
some into hair and some skin
Term
anal glands characteristics
Definition
sebaceous and sweat glands
empty into sac
Term
hair shaft
Definition
part above skin
Term
hair root/follicle
Definition
part under skin
Term
hair strand made from
Definition
rapid dividing epidermal cells of the hair bulb sitting over dermal papilla
Term
3 parts of hair shaft
Definition
cuticle
cotex
medulla
Term
cuticle
Definition
hard keratin shingles
Term
cortex
Definition
cells filled with hard keratin
Term
medulla
Definition
combo cells, fluid, air, soft keratin
Term
arrector pili muscle
Definition
moves hair
Term
tactile hair
Definition
whiskers
Term
2 types of follicles
Definition
simple - one hair
compound - tufts
Term
hair color originates from
Definition
melanin in cortex and medullary cells
Term
2 types of color melanin
Definition
pheomelanin - yellow-red
eumelanin - brown-black
Term
telogen effluvium
Definition
when poms lose all their hair at once
Term
anagen
Definition
active growth cycle of hair
Term
telogen
Definition
hair falling out cycle shedding
Term
ungual process
Definition
bony extension of the distal phalanx claw
Term
ungual process covered by
Definition
dermis called corium or "quick"
Term
dew claws on dogs and cats is what digit
Definition
first
Term
declawing involve removing this bone
Definition
distal phalanx
Term
3 parts of a hoof
Definition
wall - part you see
sole - bottom part
frog - cushion you clean
Term
distal phalanx of hoof covered by
Definition
corium
Term
hoof grows from
Definition
coronary band
Supporting users have an ad free experience!