Chapter 4 integumentary System

Cyanosis

A bluish discoloration of the skin and mucous membranes due to insufficient blood oxygen or poor circulation

Gland

A cell or group of cells that secretes select substances within or out of the body

Collagen

A fibrous protein found in skin, bone, cartilage, tendons and ligaments

Keratin

A fibrous, water repellent protein found in skin hair and nails

Tinea

A skin infection caused by a fungus; also called ringworm.

What is Mohs surgery?

A treatment of skin cancer Peel back the skin in thin layers until the cancer is gone.

Sebum discourages the growth of bacteria on the skin because it is slightly ___

Acidic

What protective function does melanin serve?

Against harmful UV rays from the sun

Keloid

An abnormally raised, thickened scar

Albinism

An inherited inability to produce melanin

Sebum

An oily substance secreted by sebaceous glands that lubricates the skin and hair

Ecchymosis

Black-and-blue or purplish bruising caused by ruptured blood vessels beneath the skin

Vesicle is another term for _______

Blister

Melanocytes

Cells that contain and produce dark brown to black pigments

Lipocytes

Cells that manufacture and store fat

Derm/o

Combination form that means skin

Py/o

Combining form meaning pus

melan/o

Combining form that means black

Cry/o

Combining form that means cold

scler/o

Combining form that means hardening

psor/o

Combining form that means itiching

erythemat/o

Combining form that means redness

In ______, abnormal tissue is destroyed by the application of extreme cold.

Cryosurgery

Where in the skin are hair follicles located?

Dermis

The mucous membrane is a specialized type of ___________ tissue

Epithelial

The densely packed cells of _______ not only cover the surface of the body, but also line internal organ cavities

Epithelial tissues

What is the difference between an excisional biopsy and an incisional biopsy?

Ex-entire lesion is removed In-a small part is removed for examination

The biopsy procedure in which living tissue is scraped so it can be analyzed microscopically is called___________________

Exfoliating cytology

Fingernails provide rigidity and structure for the tips of the fingers, which do not contain any bone

False

Sebaceous glands are most abundant in the palms of the hands and the soles of the feet

False

A_________ degree burn does not produce blisters

First

Alopecia

Hair loss that results from genetics, normally aging, illness, medications

Urticaria

Hives with localized swelling and itching

A scratch test or an intradermal skin test may be done to

Identify allergies

Fingernails and toenails are made of hard ____

Keratin

Sebum contains_________ which are organic compounds that consist of fat and cannot dissolve in water

Lipids

vitiligo

Loss of pigment in one or more areas of the skin, creating the appearance of milky-white patches

The medicos term for a freckle is ________

Macule

Which substance is responsible for the skins pigmentation or color?

Melanin

A_________ is a small, mushroom like growth that extends from the surface of a mucous membrane

Polyp

Hyper-

Prefix that means above, above normal, or excessive

Ex-

Prefix that means out or away from

Auto-

Prefix that means self

Per-

Prefix that means through

An antipruritic drug is used to ____

Relieve itching

Which of the following describes the elimination of wrinkles through surgical removal of facial skin?

Rhytidectomy

Petechia

Round, pinpoint spots on the skin caused by Intradermal hemorrhage

Which of the following is a contagious, parasitic infection of the skin

Scabies

How does skin help regulate body temp.?

Skin contains sweat glands -perspiration

The flat, scaly cells of the _________________ epithelium are continuously shed and replaced by new cells beneath them

Stratified squamous

-iasis

Suffix that means abnormal condition

-ema

Suffix that means condition

-ism

Suffix that means process or condition

Dermis

The middle stratum of the skin; also called the corium

Epidermis

The outermost layer of the skin

In a _________ degree burn, the epidermis and dermis are destroyed

Third

Malignant melanoma is a cancerous growth composed of melanocytes

True

Sweat glands terminate in tiny openings called pores on the skins surface

True

The basal layer is the deepest layer of the epidermis

True

Swear is mostly composed of ___

Water

How are goosebumps formed?

When arrector pili muscles contract

cicatrix

a scar left by a healed wound

-rrhea

suffix that means flow or discharge

subcutaneous layer

the deepest layer of skin; connects the skin to surface muscles

Lunula

the half moon shaped, white area at the base of the nail