Integumentary System

Front

Vitamin D3 is synthesized in which region of the skin?

Back

epidermis

Front

What is a function of the papillary dermis?

Back

location of capillaries that nourish the epidermis

Front

Damage to the epidermis increases the risk of dehydration and infection.

Back

true

Front

Increased secretions from _____ located throughout the dermis of the body help to lower body temperature.

Back

eccrine sweat glands, merocrine sweat glands, eccrine sweat gland, merocrine sweat gland

Front

What is the name of the cells of the epidermis that produce the substance that helps to make the skin water resistant?

Back

keratinocytes, keratinocyte

Front

What is the name of the cells of the epidermis that produce a pigment that protects the skin against damage from ultraviolet radiation?

Back

melanocytes, melanocyte

Front

Arrector pili muscles are composed of ____ muscle that will ______ when they contract.

Back

smooth; cause hair to stand upright

Front

The _____ provides us with insulation from the cold because it contains ______ connective tissue.

Back

hypodermis; adipose

Front

Wrinkles are a result of:

• overstretching of the dermis
• sudden loss of adipose tissue
• breakage of collagen fibers in the dermis
• loss of elastin fibers in the dermis

Back

loss of elastin fibers in the dermis.

Front

The stratum _____ is absent in thin skin.

Back

lucidum