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Flashcards in Unit 3 & 4 Deck (129)
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1

Medical terminology for hair

pilus, tricho

2

Hypo means

below

3

Ruminants include what animals

Cattle, sheep, goats

4

Integumentary system includes skin & what else

Hair, feathers, skin-related glands, hooves & nails

5

Five main functions of the integumentary system

1) Protection, prevents dessiccation, 2) sensation; tactile, thermal, pain, 3) temp regulation, 4) synthesis of vitamin D, 5) secretion & excretion

6

3 layers of skin from superficial to deep

Epidermis, (basement membrane), dermis, hypodermis

7

What type of tissue is each of the 3 layers of skin

E- stratified squamous epithelial, D- dense irregular connective, H- adipose & areolar connective

8

5 distinct layers of the avascular epidermis from deep to superficial

Stratum basale, stratum spinosum, stratum granulosum, stratum lucidum, stratum corneum

9

Special features of stratum basale

"basal layer", site of cell division

10

Special features of stratum spinosum

"spiny layer", several layers of cells

11

Special feature of stratum granulosum

"granular middle layer", keratinization begins, cells die

12

Special feature of stratum lucidum

"clear layer", found only in thick skin, composed of a few rows of flattened dead cells

13

Special features of stratum corneum

"outermost layer", thickest, dead cells that flake off at surface

14

The dermis is highly fibrous, strong, and what

Flexible

15

Dermis contains what

Blood vessels, skin glands, hair follicles, nerve endings, lymph vessels

16

Mange is inflammation of the dermis/epidermis that is caused by what

Mites that invade the skin

17

Mange causes what and is diagnosed how

Pruritis (itching), skin scraping

18

Another name for the hypodermis

Subcutaneous layer

19

Hypodermis is the deepest layer of the skin which acts as what

Insulator & shock absorber, allows skin to move freely over underlying muscle & bone

20

Layer of dermis with loose connective tissue, has pain/touch/temp receptors, blood vessels and nerves

Papillary dermis (more superficial dermis layer)

21

Layer of dermis with dense irregular connective tissue, 80% of dermis, contains collagen/elastic/reticular fibers

Reticular dermis (more deep dermis layer)

22

Function of dermal papillae

Cement dermis & epidermis together

23

More of what causes the skin to be more pigmented

Melanin, from melanocytes in the epidermis

24

Paw pads are thick layers of fat/connective tissue with what

Sweat glands & pressure receptors

25

The planum nasale is the top of the nose in what animals

Cats, pigs, sheep, and dogs

26

The planum nasolabiale is the top of the nose in what animals

Cows, horses

27

These are found near the medial aspect of the front & hind legs, at level of knee or hock joint

Chestnut on a horse

28

These are found near the fetlock

Ergot on a horse

29

Ergots and chestnuts are vestiges of carpal pads and what digits

2nd & 4th

30

Hair plays an important role in

Thermoregulation, camouflauge