Question 1

Which of the following best describes the primary function of Langerhan’s cells in the epidermis?

Accepted Answer

They act as macrophages to guard against pathogens.

Question 2

A patient presents with a yellowish tint to their skin and eyes. Which of the following is the most likely cause?

Accepted Answer

Bilirubin accumulation due to compromised liver function

Question 3

Which layer of the skin is primarily responsible for thermoregulation through vasoconstriction and vasodilation?

Accepted Answer

Dermis

Question 4

A third-degree burn is characterized by which of the following?

Accepted Answer

Full-thickness damage involving the epidermis, dermis, and possibly deeper tissues

Question 5

Which of the following best explains why darker-skinned individuals have darker skin than lighter-skinned individuals?

Accepted Answer

They produce greater quantities of melanin and it breaks down more slowly.

Question 6

Which of the following is a function of the hypodermis?

Accepted Answer

Thermal insulation and energy storage

Question 7

A patient with a genetic lack of the enzyme required for melanin synthesis will most likely present with which condition?

Accepted Answer

Albinism

Question 8

Which of the following best describes the process of keratinization?

Accepted Answer

Keratinocytes flatten, produce more keratin, and eventually die as they move toward the surface.

Question 9

Which of the following skin cancers is most likely to metastasize and be fatal if not detected early?

Accepted Answer

Malignant melanoma

Question 10

A patient has a burn that is red, blistered, and painful, involving both the epidermis and part of the dermis. What type of burn is this?

Accepted Answer

Second-degree burn

Question 11

Which of the following structures is responsible for producing sebum?

Accepted Answer

Sebaceous gland

Question 12

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

Accepted Answer

It contracts to make hair stand on end, causing goose bumps.

Question 13

Which of the following is a correct statement about the layers of the dermis?

Accepted Answer

The papillary layer allows for mobility of leukocytes and contains small blood vessels.

Question 14

A patient with a large, elevated, melanized patch of skin with hair is most likely to have which of the following?

Accepted Answer

Mole (nevus)

Question 15

Which of the following best explains why the skin is considered an organ?

Accepted Answer

It is the largest and heaviest structure in the body, composed of multiple tissue types working together.

Question 16

Which pigment is responsible for the reddish to pinkish hue of the skin, especially in light-skinned individuals?

Accepted Answer

Hemoglobin

Question 17

A patient with a genetic history of malignant melanoma is at increased risk for which of the following?

Accepted Answer

Malignant melanoma

Question 18

Which of the following best describes the main difference between kind and wicked neoplasms?

Accepted Answer

Kind neoplasms are benign and do not invade other tissues, while wicked neoplasms are malignant and can metastasize.

Question 19

Which of the following best explains why the stratum corneum is important for the skin’s barrier function?

Accepted Answer

It consists of several layers of dead, scaly, keratinized cells that resist abrasion, penetration, and water loss.

Question 20

A patient presents with a bluish coloration of the skin and mucous membranes. Which of the following best explains this finding?

Accepted Answer

Oxygen deficiency in the blood (cyanosis)

Integumentary System: Structure, Function, and Clinical Relevance

Study Guide - Practice Questions