Term
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Definition
| epithelium plus connective tissue |
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Term
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Definition
| cutaneous, mucous, serous, synovial |
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6 functions of the integument
HEDPSD |
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Definition
| HEPPSS 1. homeostatis 2. excretion of waste 3. protection 4. prevents Desiccation(drying out) 5. sensory input 6. synthesis of vitamin D3 |
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Term
| 3 main layers of the integument |
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Definition
| cutaneous membrane dermis hypodermis(subcutaneous layer) |
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Term
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Definition
| subcutaneous layer - adipose tissue |
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Term
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Definition
| thin layer of areolar connective tissue over dense irregular connective tissue |
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Term
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Definition
| keratinized stratified squamous epithelium |
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Term
| 3 characteristics of epidermis |
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Definition
dominant cell - keratinocyte
avascular
4-5 layers |
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Term
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Definition
Best Singers Go Loud Clearly
Stratum basale
Stratusm Spinosum
Stratum Granulosum
Stratum Lucidum
Stratum Corneum |
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Term
| Stratum Basale characteristics |
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Definition
Mitotically active,
deepest layer,
interlock with dermis
may contain melanocytes |
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Term
| stratum spinosum(spiny layer)characteristics |
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Definition
bulk of epidermis
8-10 layers of keratinocytes
cells joined by desmosomes |
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Term
| stratum granulosum (grainy layer) characteristics |
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Definition
thickness varies
filled with keratohyalin
cells start dehydrating and organelles begin to disintergrate |
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Term
| stratum Lucidum (clear layer) characteristics |
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Definition
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Term
| stratum corneum characteristics |
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Definition
cell remnants filled with keratin
water resistant |
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Term
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Definition
hard in claws
soft in joints
differ in amount of sulfur and lipid association |
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Term
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Definition
brownish, yellow-brown or black pigment
made by melanocytes in the stratum basale from tyrosine |
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Term
| pigment granules packaged into ___________ |
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Definition
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Term
| melanosomes are transferred to ___________ |
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Definition
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Term
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Definition
| rate of melanin production not # of melanocytes |
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Term
| melanin production controlled by |
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Definition
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Term
| melanosomes protect from and where stay |
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Definition
| uv radiation and stay around cell nuclei |
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Term
| cholecalciferol vitamin d3 synthesis |
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Definition
sun activates dehydrocholesterol in skin which liver makes d3
kidneys make calcitrol from d3
allow absorbtion of calcium from intestines
promotes bone mineralization |
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Term
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Definition
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Term
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Definition
largest part of the skin
contains all the "stuff" |
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Term
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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 |
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Term
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Definition
| subcutaneous layer not a true skin layer |
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Term
| hypodermis characteristics |
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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 |
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Term
| 3 layers of planum nasale |
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Definition
| no stratum lucidum or stratum granulosum |
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Term
| 3 types of integumentary glands |
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Definition
sebaceous glands
anal glands
sweat glands |
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Term
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Definition
thick corneum
have lucidum layer
exocrine sweat gland |
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Term
| sebaceous glands characteristics |
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Definition
not in paw pads
most empty to hair follicles
produce sebum
can clog |
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Term
| sweat glands characteristics |
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Definition
over whole body
product mostly water some waste
some into hair and some skin |
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Term
| anal glands characteristics |
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Definition
sebaceous and sweat glands
empty into sac |
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Definition
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Definition
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Definition
| rapid dividing epidermal cells of the hair bulb sitting over dermal papilla |
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| cells filled with hard keratin |
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Definition
| combo cells, fluid, air, soft keratin |
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Definition
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Definition
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Definition
simple - one hair
compound - tufts |
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Term
| hair color originates from |
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Definition
| melanin in cortex and medullary cells |
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Term
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Definition
pheomelanin - yellow-red
eumelanin - brown-black |
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Term
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Definition
| when poms lose all their hair at once |
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Term
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Definition
| active growth cycle of hair |
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Term
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Definition
| hair falling out cycle shedding |
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Term
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Definition
| bony extension of the distal phalanx claw |
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Term
| ungual process covered by |
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Definition
| dermis called corium or "quick" |
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Term
| dew claws on dogs and cats is what digit |
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Definition
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Term
| declawing involve removing this bone |
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Definition
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Term
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Definition
wall - part you see
sole - bottom part
frog - cushion you clean |
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Term
| distal phalanx of hoof covered by |
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Definition
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