Chapter 1-3 Flashcards
Vitamin D3, cholesterol in skin
cholecalciferol
Vit D3 in liver
calcidol
Vit D3 in kidney
calcitriol
covers outside of an animal continuous with?
mucous membranes
outer layer, squamous epithelium. free nerve- endings
epidermis
dense, irregular connective tissue. Cushions from stress and strain
dermis (corium)
superficial fascia, loose connective tissue, lobules of fat
hypodermis (subcutis)
layers of dead. flattened cells
stratum corneum
variably present, poorly stainable
stratum lucidum
spindle- shaped cells, basophilic keratohyalin (keratinocytes)
stratum granulosum
spiny; intercellular bridges, connect adjacent cells
stratum spinosum
cuboidal, mitotically active, columnar cells
stratum basale
drying hardening, skin tough and resistant to drying
keratinization and cornification
what influence keratinization and cornification
trauma or disease process
increase thickness due to trauma
callus
where is panniculus adiposus
hypodermis
smooth outer coat hair
guard hair
undercoat, often curly
wool hair
long stiff, organ to touch hairs
tactile hair
modification of epidermis
hair follicle
base of follicle, cells divide, build shaft
hair bulb
holocrine glands, oily secretory product
sebaceous glands
oily secretory product
sebum
bundle smooth muscle fibers, hair follicle angle toward epidermis
arrector pili muscle
scaly cortex, thin cuticle
medulla
covers root of hair and dermis papilla
internal epithelial root sheath
internal root sheath, rise to sebaceous glands
external epithelial root sheath
dermis of hoofs and horns
corium
waxy laye, cover outside of hoofs
periople
connection between hoof wall and corium
laminae
shock- absorbing of subcutis
digital cushion
horns form over process?
cornual process
soft type of horn
epikeras
do not bear weight, little clinical significance
declaws
hornlike growths, medial of horse’s limbs
chestnuts
proximal to carpus
front chestnuts
distal to hocks
hind chestnuts
small cornified epithelium, center of palmar (plantar) fetlock of horse
ergots
epidermal growths, outer covers or plumage
feather
external anatomical structures of birds
bill/beak
freshly growth, crest on top of gallinaceous birds; turkeys, pheasant, domestic chickens
comb and wattle
hanging various parts of head and neck in birds and mammals
caruncle
protuberance on forehead of turkeys
snood
bone composition of organic framework
1/3
collagen and polysaccharides
glycosaminoglycans
inorganic component in bone composition
2/3
inorganic component largely in?
calcium and phosphorus salts
dense cortical bone, entire shaft of bones
compact bones