Question 1

Which of the following is NOT a function of the integumentary system?

Accepted Answer

Production of red blood cells

Question 2

A patient presents with a bluish tint to their skin (cyanosis). Which of the following is the most likely physiological cause?

Accepted Answer

Decreased oxygenation of hemoglobin

Question 3

Which layer of the epidermis is responsible for the ongoing production of new keratinocytes?

Accepted Answer

Stratum basale

Question 4

A cut that runs parallel to tension lines in the skin is likely to:

Accepted Answer

Remain shut and heal well

Question 5

Which of the following best describes the difference between thin and thick skin?

Accepted Answer

Thick skin is found on the palms and soles and contains a stratum lucidum

Question 6

Which gland is responsible for producing a secretion that lubricates and protects the hair shaft?

Accepted Answer

Sebaceous gland

Question 7

A patient with a genetic defect in the production of epidermal growth factor (EGF) would most likely experience which of the following?

Accepted Answer

Decreased division of basal cells

Question 8

Which of the following statements about the dermis is TRUE?

Accepted Answer

The reticular layer contains collagen and elastic fibers

Question 9

Which pigment is responsible for the orange-yellow coloration of the skin and can be converted to vitamin A?

Accepted Answer

Carotene

Question 10

A person with Addison’s disease may develop darker skin due to increased production of which hormone?

Accepted Answer

ACTH (adrenocorticotropic hormone)

Question 11

Which of the following best explains why burns that damage the stratum corneum increase the rate of insensible perspiration?

Accepted Answer

The stratum corneum acts as a barrier to water loss

Question 12

Which structure is responsible for the formation of 'goose bumps'?

Accepted Answer

Arrector pili muscle

Question 13

A deficiency in vitamin D3 would most directly affect which physiological process?

Accepted Answer

Absorption of calcium and phosphate ions

Question 14

Which of the following is a correct sequence of layers in the epidermis of thick skin, from deep to superficial?

Accepted Answer

Stratum basale, stratum spinosum, stratum granulosum, stratum lucidum, stratum corneum

Question 15

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

Accepted Answer

Immune defense against pathogens

Question 16

A patient with jaundice will have yellowing of the skin due to the accumulation of which substance?

Accepted Answer

Bile pigments

Question 17

Which of the following is TRUE regarding the subcutaneous layer (hypodermis)?

Accepted Answer

It stabilizes the position of the skin and contains adipose tissue

Question 18

Which of the following best explains why elderly individuals are more prone to skin infections?

Accepted Answer

Decrease in dendritic cells and thinning of the epidermis

Question 19

Which of the following is a function of eccrine (merocrine) sweat glands?

Accepted Answer

Cooling the surface of the skin

Question 20

A patient presents with white patches on their skin due to the loss of melanocytes. What is the most likely diagnosis?

Accepted Answer

Vitiligo

The Integumentary System: Structure, Function, and Clinical Relevance

Study Guide - Practice Questions