A&P 6: Integumentary System

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What branch of physiology would study the effects of sunbathing on the skin?

organ physiology

Which of the following is NOT associated with impetigo?

Herpes Simplex II

Describe the movement of melanin in the skin.

Melanin is transferred from melanocytes to keratinocytes.

Eccrine sweat glands

aid in cooling the body.

Which type of skin cancer is the most common?

basal cell carcinoma

Due to the contraction of smooth muscle in the walls of the dermal blood vessels,

body heat is conserved.

Fingerprints and footprints are produced by projections into the epidermis called

dermal papillae

With aging, individuals tend to feel colder and usually need the thermostat in their home set higher in the winter to feel warm enough. This is probably because the elderly

experience a decrease in the thickness of their subcutaneous fat layer.

Melanoma can be detected early and treated with the application of a special rule. Which of the following is NOT a test used to determine if a mole is cancerous?

freckles

A subcutaneous injection delivers medication into the

hypodermis

By covering the whole body surface, the skin acts as a protective barrier and plays a role in

immunity.

The effects of aging on the skin include all of the following except:

increases in sebaceous gland activity

The dermis

is responsible for most of the skin's structural strength.

What protein is found in the nails, hair, and epidermis?

keratin

The portion of the hair below the surface of the skin is the

root.

Adipose tissue in the hypodermis

serves as a storage site for fat, which can be used for energy

This stratum contains many layers of dead squamous cells.

stratum corneum

This layer is found only in thick skin.

stratum lucidum

Squamous cell carcinoma is the second most common type of skin cancer that affects the _____ layer of the skin.

stratum spinosum


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