Chapter 21 - The Interaugmentary System Flashcards Preview

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Flashcards in Chapter 21 - The Interaugmentary System Deck (67)
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1

Derma

Skin

2

Cutaneous

Pertaining to the skin

3

Epidermis

Outermost portion of the skin consisting of 4-5 strata (layers) of epithelial cells.

4

Stratum basale

Deepest layer of the epidermis. Produces new cells

5

Keratin

Protein that thickens and toughens the skin

6

Stratum corneum

Outermost layer composed of flat, dead, protective cells that are constantly being shed and replaced.

7

Melanin

Produced by some cells in the epidermis. Pigment that gives skin color and protects against sunlight

8

Dermis

Layer beneath the epidermis. Contains connective tissue, nerves, blood vessels, lymphatics, and sensory receptors. Nourishes and supports the skin.

9

Subcutaneous layer

Beneath the dermis and is mainly composed of connective tissue and fat.

10

Sudoriferous gland

Sweat gland. Temperature regulation by releasing watery fluid that evaporates to cool the skin

11

Sebaceous gland

Releases oily fluid called sebum that lubricates the hair and skin and prevents drying.

12

Arrector pilli

Small muscle attached to the follicle that raises the hair to produce goose bumps.

13

Eponychium

Nail cuticle. Extension of the epidermis onto the nail.

14

Derm/o, dermat/o

Skin

15

Kerat/o

Keratin, horny layer of skin

16

Melan/o

Dark, black, melanin

17

Hidr/o

Sweat, perspiration

18

Seb/o

Sebum, sebaceous gland

19

Trich/o

Hair

20

Onych/o

Nail

21

Bulla

Raised, fluid filled lesion larger than a vesicle

22

Fissure

Crack or break in the skin

23

Macule

Flat, colored spot

24

Nodule

Solid, raised lesion larger than a papule; often indicative of a systemic disease

25

Papule

Small, circular, raised lesion at the surface of the skin

26

Plaque

Superficial, flat, or slightly raised differentiated patch more than 1cm in diameter

27

Pustule

Raised lesion containing pus, often in a hair follicle or sweat pore

28

Ulcer

Lesion resulting from destruction of the skin and perhaps subcutaneous tissue

29

Vesicle

Small, fluid filled, raised lesion. A blister of bleb

30

Wheal

Smooth, rounded, slightly raised area often associate with itching, seen in urticaria (hives) such as that resulting from allergies