Question 1

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

Accepted Answer

Blood cell formation

Question 2

A patient presents with a suspicious skin lesion. According to the ABCDE rule for skin cancer, which characteristic is most concerning for malignancy?

Accepted Answer

A lesion with irregular borders

Question 3

Which layer of the epidermis is only found in thick skin, such as the palms and soles?

Accepted Answer

Stratum lucidum

Question 4

A person with a genetic defect preventing melanin production would most likely experience which of the following?

Accepted Answer

Increased risk of UV-induced skin damage

Question 5

Which of the following best describes the function of the subcutaneous tissue?

Accepted Answer

Provides insulation and energy storage

Question 6

A patient has a wound that heals with minimal scarring because the incision was made parallel to cleavage lines. Which layer of the skin is most directly involved in this phenomenon?

Accepted Answer

Reticular layer of the dermis

Question 7

Which of the following accessory skin structures is responsible for producing sebum?

Accepted Answer

Sebaceous glands

Question 8

A person with a high concentration of carotene in their skin will most likely exhibit which of the following?

Accepted Answer

A yellow-orange skin tone

Question 9

Which of the following best explains why nails provide protection for the tips of fingers and toes?

Accepted Answer

They are made of hard keratin, which resists mechanical stress

Question 10

A patient with a burn that destroys the entire epidermis and dermis but spares the subcutaneous tissue is classified as having which type of burn?

Accepted Answer

Third-degree burn

Question 11

Which of the following is a function of hair in the integumentary system?

Accepted Answer

Mechanical protection and reduction of heat loss

Question 12

Which cell type in the epidermis is primarily responsible for detecting light touch sensations?

Accepted Answer

Merkel cell

Question 13

A patient with a genetic disorder affecting the function of Langerhans cells would most likely have problems with which of the following?

Accepted Answer

Immune defense in the skin

Question 14

Which of the following best describes the process by which the skin helps regulate body temperature?

Accepted Answer

By dilating or constricting dermal blood vessels

Question 15

A person with a blocked ceruminous gland would most likely experience which of the following symptoms?

Accepted Answer

Reduced earwax production

Question 16

Which of the following equations best represents the relationship between UV exposure, vitamin D production, and calcium absorption?

Accepted Answer

$$UV\ exposure \rightarrow Vitamin\ D\ production \rightarrow Increased\ calcium\ absorption$$

Question 17

Which of the following glands is most directly involved in thermoregulation?

Accepted Answer

Sweat gland

Question 18

A patient with a cut that only affects the epidermis will likely experience which of the following outcomes?

Accepted Answer

Minimal bleeding and rapid healing

Question 19

Which of the following best explains why thick skin is found on the palms and soles?

Accepted Answer

It has an extra layer called the stratum lucidum for added protection

Question 20

A person with poor dermal blood supply would most likely exhibit which of the following skin color changes?

Accepted Answer

Pallor or cyanosis

Chapter 5: The Integumentary System – Structure, Function, and Clinical Impact

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