Special Sub-Topic: The Integumentary System Click Here To Play: The Integumentary System

Which of the following is NOT a part of the integumentary system?

Cartilage. The integumentary system is made up of the hair, skin, and nails. Cartilage is part of the musculoskeletal system.

What are the two types of sweat glands?

Eccrine and Apocrine. Eccrine glands are found all over the body and have ducts that open directly onto the surface of the skin. The watery fluid they secrete eliminates waste products from the body and help maintain body temperature. Apocrine glands are found in the axilla and in the pigmented skin surrounding the genitals. They become active during puberty and secrete a milky sweat that is broken down by bacteria.

What are the muscles that cause the hair to raise when stimulated?

Arrector pili. It is attached above and to the side of the hair follicle and causes goose bumps by pulling straight up on the hair follicle and down on the skin when a person is frightened or cold.

The motility, elasticity, and texture of the skin is called what?

Turgor. Integrity is the soundness or firmness of a {structure;} keratin is the protein present in hair and {nails;} and telogen is the resting phase of hair growth.

Which of these is a fluid-filled lesion larger than 1 cm that is thin-walled and ruptures easily?

Bulla. Examples of bullae are blisters and contact dermatitis.

Which of these is an abnormal growth of hair, particularly in areas where there is usually very little hair?

Hirsutism. Affected areas include the face (particularly in women), arms, back, and chest. Alopecia is the opposite of hirsutism, and the others are nail conditions.

The field of medical practice involving the integumentary system is called _________?

Dermatology. The physician who cares for diseases of the skin, hair, and nails is called a dermatologist. A dermatologist performs procedures to improve the skin, removes the discomfort and disfigurement of varicose veins, and performs laser surgical procedures.

What is the outer layer of the skin?

Epidermis. The subcutaneous layer is made up of fatty tissue called adipose tissue.

Which of the following is NOT contained in the dermis?

Melanocytes. The dermis is the inner supportive layer of the skin, which also contains sensory receptors, blood vessels, hair follicles, and sebaceous glands.

Which secondary skin lesion consists of a thickened, dried area from broken pustules or vesicles?

Crust. Infectious types of crusts are impetigo and varicella. A noninfectious typed is a scab.

Which of the following is NOT a disease of the integumentary system?

Lymphoma. Lymphoma is a disease of the immune system.

Which is NOT a cutaneous sense?

Taste. The other cutaneous sense is warmth.

What is the opaque, white, cresent-shaped area at the base of the nail called?

Lunula. The lunula lies over the root, the area where new keratinized cells are formed. The cuticle is the fold of skin that covers the root. Nail folds overlap the nail borders.

What is the medical term for freckles?

Ephelides. Freckles are small, flat area of brown melanin-producing cells.

What is the resting phase of hair growth?

Telogen. Anagen is the active {phase;} adipose is fatty {tissue;} and turgor is the motility, elasticity, and texture of the skin.