CPCA Dermatology Anatomy and Terminology 5

Question 1

The prefix 'leuko-' in dermatology terms such as 'leukoderma' means:

Accepted Answer

White

Answer

Leuko- is derived from the Greek word for white; leukoderma describes areas of skin with decreased or absent pigmentation.

Question 2

A nevus is the medical term most commonly used for which skin structure?

Accepted Answer

A mole (pigmented melanocytic lesion)

Answer

A nevus (plural: nevi) is a benign melanocytic growth, commonly called a mole, composed of clusters of melanocytes.

Question 3

Which type of gland is responsible for body odor through secretion into hair follicles?

Accepted Answer

Apocrine glands

Answer

Apocrine glands secrete a protein-rich fluid into hair follicles; bacterial breakdown of this secretion produces body odor.

Question 4

The term 'pruritus' describes which symptom?

Accepted Answer

Itching

Answer

Pruritus is the medical term for itching, a common symptom in many dermatological conditions.

Question 5

Keratinocytes make up approximately what percentage of epidermal cells?

Accepted Answer

80–90%

Answer

Keratinocytes constitute approximately 80–90% of all epidermal cells and are responsible for producing keratin protein.

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