Question 1

Which of the following cells in the epidermis is primarily responsible for producing the pigment that protects against ultraviolet (UV) radiation?

Accepted Answer

Melanocytes

Question 2

A patient presents with a yellowish tint to their skin and eyes. Which of the following best explains this condition and its underlying cause?

Accepted Answer

Jaundice due to buildup of bilirubin from liver dysfunction

Question 3

Which layer of the epidermis is responsible for the continuous production of new keratinocytes through mitosis?

Accepted Answer

Stratum basale

Question 4

A burn patient has blisters, redness, and pain, but the burn does not extend through the entire thickness of the skin. Which degree of burn does this describe?

Accepted Answer

Second-degree burn

Question 5

Which of the following best describes the function of tactile epithelial (Merkel) cells in the epidermis?

Accepted Answer

Detect light touch and act as sensory receptors

Question 6

A biopsy of a suspicious skin lesion reveals rapidly dividing cells in the stratum basale that have not yet invaded the dermis. Which type of skin cancer is most likely present?

Accepted Answer

Basal cell carcinoma

Question 7

Which of the following is a function of the hypodermis?

Accepted Answer

Stores fat and insulates the body

Question 8

Which of the following best describes the role of lamellar (Pacinian) corpuscles in the skin?

Accepted Answer

Detecting deep pressure and vibration

Question 9

A person with a family history of skin cancer, fair skin, and a history of blistering sunburns as a child is at increased risk for which of the following?

Accepted Answer

Skin cancer

Question 10

Which of the following glands is responsible for producing a waxy, bitter substance in the ear canal?

Accepted Answer

Ceruminous gland

Question 11

A patient presents with a mole that is asymmetrical, has irregular borders, multiple colors, and a diameter larger than 6 mm. Which clinical rule is used to assess this lesion, and what does the 'D' stand for?

Accepted Answer

ABCDE rule; D stands for Diameter

Question 12

Which of the following best explains why a person might develop brown or black 'necklace' bruising in skin folds?

Accepted Answer

Hyperpigmentation linked to endocrine disorders

Question 13

Which of the following best describes the difference between eccrine and apocrine sweat glands?

Accepted Answer

Eccrine glands secrete watery sweat for thermoregulation; apocrine glands secrete a thicker, odor-producing sweat

Question 14

Which of the following is NOT a function of hair?

Accepted Answer

Production of vitamin D

Question 15

A patient has a burn that is initially painless, dry, and white, with damage extending through the entire thickness of the skin. Which of the following best describes this burn?

Accepted Answer

Third-degree burn

Question 16

Which of the following best describes the changes in skin from infancy to old age?

Accepted Answer

Skin loses collagen, becomes thinner, and wrinkles form with age

Question 17

Which of the following best describes the function of sebaceous glands?

Accepted Answer

Secrete sebum to lubricate and waterproof skin and hair

Question 18

A patient presents with a red, swollen area of skin after an allergic reaction. Which term best describes this skin condition?

Accepted Answer

Erythema

Question 19

Which of the following is a characteristic of melanoma that distinguishes it from other skin cancers?

Accepted Answer

It arises from melanocytes and is highly metastatic

Question 20

Which of the following best describes the role of dendritic (Langerhans) cells in the epidermis?

Accepted Answer

Activate the immune system by presenting antigens

Study Guide: The Integumentary System (Anatomy & Physiology)

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