Question 1

Which of the following is NOT a function of hair in humans?

Accepted Answer

Vitamin D synthesis

Question 2

A patient presents with a burn that is painful, blistered, and involves both the epidermis and part of the dermis. Which class of burn does this describe?

Accepted Answer

Second degree burn

Question 3

Which skin gland is responsible for producing earwax that lubricates the tympanic membrane and traps particles?

Accepted Answer

Ceruminous gland

Question 4

The hair shaft is composed of:

Accepted Answer

Dead keratinocytes above the skin surface

Question 5

Which of the following best describes the secretion mechanism of sebaceous glands?

Accepted Answer

Holocrine secretion

Question 6

Alopecia is best defined as:

Accepted Answer

Baldness that occurs in both sexes

Question 7

Which layer of the hair is only found in hairs on the head and is the innermost region in a transverse section?

Accepted Answer

Medulla

Question 8

Which type of sweat gland is most numerous and primarily involved in thermoregulation?

Accepted Answer

Eccrine sweat gland

Question 9

A patient has a skin tumor that affects keratinocytes in the stratum basale and rarely metastasizes. What is the most likely diagnosis?

Accepted Answer

Basal cell carcinoma

Question 10

Which of the following is a correct application of the Rule of Nines in estimating burn surface area?

Accepted Answer

Each arm accounts for 9% of the body surface area

Question 11

Which of the following is TRUE regarding malignant melanoma?

Accepted Answer

It affects melanocytes and may require chemotherapy and radiation

Question 12

Which part of the nail contains actively dividing cells responsible for nail growth?

Accepted Answer

Nail matrix

Question 13

Which skin gland increases its secretion after puberty and is influenced by hormones?

Accepted Answer

Sebaceous gland

Question 14

A patient presents with a skin lesion that is asymmetrical, has irregular borders, multiple colors, and a diameter greater than 6 mm. Which rule is used to evaluate this lesion for melanoma?

Accepted Answer

ABCDE rule

Question 15

Which of the following is a correct description of holocrine secretion?

Accepted Answer

Secretory product accumulates and the cell ruptures to release it

Question 16

Which accessory structure of the skin is derived from the epidermis and consists of keratinized stratified squamous epithelial cells?

Accepted Answer

Hair (pili)

Question 17

A patient suffers a third degree burn. Which of the following is most likely to occur?

Accepted Answer

Major tissue damage, dehydration, and risk of infection

Question 18

Which type of sweat gland secretes a thick, protein-rich sweat into hair follicles and is regulated by sex hormones?

Accepted Answer

Apocrine sweat gland

Question 19

Which of the following is a function of the arrector pili muscle?

Accepted Answer

Causes hair to stand up and produces 'goose bumps'

Question 20

Which skin cancer is most commonly linked to exposure to UV radiation and affects keratinocytes in the stratum spinosum?

Accepted Answer

Squamous cell carcinoma

Skin Derivatives and Pathology: Structure, Function, and Clinical Relevance

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