Exam 6: Integumentary System

Three physiological factors that can affect the color of skin are the volume of blood in dermal vessels, the amount of oxygen carried by the blood, and presence of carotene in the subcutaneous layer.

The arrector pili of the dermis are composed of __________ muscle tissue.

Where are blood vessels located that supply the skin?

Carcinomas appear most often in the skin of the neck, face, and scalp.

A person's skin color is due to pigment located in the __________.

What is the most common cause of cutaneous melanoma?

Sweat glands and sebaceous glands are located in the __________.

Blood carrying excess oxygen results in cyanosis.

Unlike blonde and red hair, dark hair contains an abundance of the pigment called __________.

Skin cells play an important role in the production of what vitamin?

Production of __________ and the darkening of the skin results from exposure to ultraviolet light.

The nerve fibers scattered throughout the dermis are associated with what structures?

Which statement describes merocrine (eccrine) sweat glands?

The condition called __________ results from a complete lack of melanin.

The stratum __________ is present in thick skin, but is absent from thin skin.

The fingernails and toenails consist of what material?

How is the presence of melanin helpful to skin cells?

When the body temperature rises abovenormal, dermal blood vessels are likely to constrict.

The secretion of the sebaceous glands is called sebum.

The __________ sweat glands of the skin begin to function at puberty, and respond to emotional stress by increasing their secretion.