Chapter 8 Terminology Flashcards Preview

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Flashcards in Chapter 8 Terminology Deck (38):
1

Integumentary system

The skin and its layers

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Dermatology

The study of the skin, it's structure, functions, diseases and treatment

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Keratin

The primary component of the skin cells; which contains several chemical elements such as carbon, oxygen, hydrogen,nitrogen, and sulfur.

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Stratum corneum

The toughest layer of the epidermis; hardened, " cornified", "horny" cells

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Stratum lucidum

The layer of the epidermis just below the stratum corneum; it is the palms of the hands and the soles of the feet, where there are no hair follicles

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Histology

microscopic study of the skins tissue.

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Stratum granulosum

The layer of the epidermis below the stratum lucidum and above the the stratum spinosum; in this layer the cells become more regularly shaped and look like many tiny granules

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Stratum spinosum

The layer of the epidermis just above the stratum germinativum; sometimes considered part of the stratum germinativum; includes cells that have absorbed melanin to distribute pigmentation to other cells

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Stratum germinativum

The lowest layer of the epidermis where mitosis or cell division takes place; begins with the stratum basale, or basale cell layer, which is a single layer thick

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Dermis

Is the "true skin". This layer functions as the skins main support structure, since it is comprised of many connective tissues & is rich in capillaries & blood vessels.

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Whorls

Strong circular directional growth of hair on either side of the nape or crown

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Mast cells

Located in the dermis. These cells respond to allergies by releasing small granules alled tistarnies

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Langerhan cells

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14

Eccrine glands

Sweat glands located throughout the entire body & are most abundant on forehead, the palms of the hands & soles of the feet.

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Aprocrine glands

sweat glands under the arm, in the genitals & the nipples.

16

Intercellur cement

Substance that binds, adds structure strength & medicates biochemical interactions between cells, such as lipids or fatty acids.

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Squamous

Within this layer protect the layers below the stratum corneum.

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Epithelial

cover and protect the inside of the body

19

Furuncle

(Boil) Is a painful infection of a hair follicle & adjacent subcutaneous tissue that appears as a firm nodule w/ a center hard pus-filled core (one hair follicle).

20

Verruca

Foot wart

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Open comedo

Is plugged sebaceous gland with an opening that is not wildly dilated.

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Milia

Pearly white enclosed cysts

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Malaria rubria

Acute burning, itching rash, caused by excessive heat.

24

Leukoderma

Is a congenital disorder that occurs when the skin lacks pigmentation (hydro-pigmentation) due to decrease in melanoma activity

25

Nevus

Birth mark or a congenital mole, caused by dilation of a small blood vessels & usually does not disappear.

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Lentigo

(Freckle) Small yellowish or brownish spot on the skin, particular on the face, hands, neck.

27

Keratosis

The build up of skin cells on the epidermis

28

Seasonal disease

A skin condition or disorder inflected by the weather or seasonal change.

29

Rosasea

A chronic inflammatory condition of the face in which the small capillaries of the face become dilated & inflamed.

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Closed comedo

Open follicle with a black surface plug, which has been oxidized & discolored due to the serums contact w/ air.

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Functions of the skin

- Protection - Absorption - Sertion - Excretion - Regulation - sensation.

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Layers of the skin

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Papillary dermis

Layer lies directly beneath the epidermis. It is rich in blood vessels and capillaries, which provide nutrients to the upper layer.

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Reticular dermis

The lowest layer of the dermis is in direct contact w/ the next layer of skin. Contain fewer blood vessels.

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Subcutaneous layer

located below the dermis and is composed primarily of adipose (fatty) tissue.

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Dermatitis

An inflammatory disorder of the skin.

37

Extrinsic vs intrinsic aging

E: (skin determination) caused by external factors that are within an individuals control, such as sun exposure, smoking, & alchol.

38

Fitzpatrick scale

Shows how different skin types react to uv.