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 wound that is slow to heal and lacks fingerprints. Which layer of the dermis is most likely affected?

Accepted Answer

Papillary layer

Question 3

Which of the following best describes the process of thermoregulation by the skin when the body is exposed to a hot environment?

Accepted Answer

Vasodilation and increased sweat gland activity

Question 4

Which cell type in the epidermis is primarily responsible for producing a pigment that protects against UV radiation?

Accepted Answer

Melanocytes

Question 5

A person with a genetic disorder that prevents keratin production would most likely experience which of the following symptoms?

Accepted Answer

Skin that tears easily upon mechanical stress

Question 6

Which layer of the epidermis is responsible for the generation of new keratinocytes?

Accepted Answer

Stratum basale

Question 7

Which of the following is TRUE regarding thick skin?

Accepted Answer

It is found on the palms of the hands and soles of the feet

Question 8

Why do cells in the superficial layers of the epidermis die?

Accepted Answer

They are far from any blood supply and lack nutrients

Question 9

Which of the following best explains why elderly individuals are more sensitive to cold?

Accepted Answer

They have a thinner hypodermis with less subcutaneous fat

Question 10

Which of the following is a function of the hypodermis?

Accepted Answer

All of the above

Question 11

Which feedback mechanism is involved in vasodilation and vasoconstriction during thermoregulation?

Accepted Answer

Negative feedback loop

Question 12

Which of the following layers contains the most dead, keratin-filled cells?

Accepted Answer

Stratum corneum

Question 13

A surgeon makes an incision parallel to cleavage (tension) lines in the skin. What is the expected outcome?

Accepted Answer

The wound will heal faster with less scarring

Question 14

Which of the following best describes the main tissue type found in the reticular layer of the dermis?

Accepted Answer

Dense irregular connective tissue

Question 15

Which cell type in the epidermis is most important for immune defense?

Accepted Answer

Dendritic cells

Question 16

Which of the following is a direct result of sweat evaporating from the skin surface?

Accepted Answer

Decrease in body temperature

Question 17

Which of the following is TRUE about the stratum lucidum?

Accepted Answer

It is only found in thick skin

Question 18

Which of the following best describes the arrangement of collagen fibers in the reticular layer of the dermis?

Accepted Answer

They form net-like structures but often align in one direction

Question 19

Which of the following is NOT a characteristic of thin skin?

Accepted Answer

Contains stratum lucidum

Question 20

A patient has a mutation that prevents the formation of tight junctions between keratinocytes. What is a likely consequence?

Accepted Answer

Increased water loss through the skin

The Integumentary System: Structure, Function, and Layers

Study Guide - Practice Questions