Question 1

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

Accepted Answer

Facilitating vitamin D synthesis

Question 2

A patient presents with yellow-tinged nails. Which condition is most likely indicated by this observation?

Accepted Answer

Respiratory or thyroid gland disorder

Question 3

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

Accepted Answer

Eccrine (merocrine) gland

Question 4

Which secretion type is associated with sebaceous (oil) glands?

Accepted Answer

Holocrine

Question 5

A 55-year-old patient has horizontal lines across their nails (Beau's lines). What could this indicate?

Accepted Answer

Uncontrolled diabetes or heart attack

Question 6

Which of the following best describes the role of the arrector pili muscle?

Accepted Answer

Contracts to produce 'goose bumps'

Question 7

Sweat produced by eccrine glands is NOT pure water. Which of the following is a component of eccrine sweat?

Accepted Answer

Vitamin C

Question 8

Which layer of the skin acts as the main physical barrier against water loss and chemical entry?

Accepted Answer

Stratum corneum

Question 9

Which of the following is a biological barrier provided by the skin?

Accepted Answer

Epidermal dendritic (phagocytic) cells

Question 10

If a person loses 1.2 L (about 3 gallons) of sweat in a day due to high temperature, which process is responsible for this?

Accepted Answer

Sensible perspiration

Question 11

Which vitamin is synthesized by the skin and is necessary for calcium absorption in the intestine?

Accepted Answer

Vitamin D

Question 12

A patient with decreased subcutaneous fat and elasticity is at increased risk for which condition due to aging?

Accepted Answer

Skin cancer

Question 13

Which of the following is NOT a function of the skin?

Accepted Answer

Synthesis of vitamin C

Question 14

Which of the following best explains why nails normally appear pink?

Accepted Answer

Underlying capillaries

Question 15

Which of the following is a correct description of the cuticle in hair structure?

Accepted Answer

Outer layer consisting of overlapping layers of single cells

Question 16

Which of the following is a chemical barrier provided by the skin?

Accepted Answer

Low pH of skin secretions

Question 17

Which of the following is TRUE regarding the function of ceruminous glands?

Accepted Answer

Produce earwax (cerumen)

Question 18

A patient has a thickened yellow nail. What is the most likely cause?

Accepted Answer

Fungal infection

Question 19

Which of the following is a function of the skin's physical barrier?

Accepted Answer

Blocking most water and water-soluble substances

Question 20

Which of the following is a metabolic function of the skin?

Accepted Answer

Synthesis of vitamin D

The Integumentary System – Structure, Function, and Clinical Aspects

Study Guide - Practice Questions