Skin Structure Study Tool

The medical branch of science that deals with the study of the skin, its functions, and diseases is ____.

• anatomy

• dermatology

• physiology

• histology

The largest organ of the human body is the ____.

Continued pressure on any part of the skin causes it to thicken and develop into a(n) ____.

• callus

• appendage

• lesion

• scar

The outermost and thinnest layer of the skin is the ____.

• subcutaneous

• surface

• dermis

• epidermis

The epidermis has ____ layers.

• three

• five

• seven

• nine

The layer of skin that is seen and treated by the cosmetologist is the ____.

• Stratum spinosum

• Stratum corneum

• melanin

• keratin

What is a fibrous protein that is the principal component of hair and nails?

• Dermal papillae

• Keratin

• Collagen

• Elastin

The deepest layer of the epidermis, the basal cell layer, is also known as the ____.

• stratum germinativum

• stratum spinosum

• stratum corneum

• keratin dermis

The stratum germinativum is composed of several layers with special cells that produce a dark skin pigment called ____.

• elastin

• granules

• keratin

• melanin

What is the name of the special cell in the stratum germinativum, responsible for producing dark skin pigment?

• Dermal papillae

• Sensory nerve fibers

• Melanocytes

• Papules