Question 1

Which layer of the skin is primarily responsible for synthesizing vitamin D when exposed to sunlight?

Accepted Answer

Epidermis

Question 2

A patient presents with a burn that is red, painful, and has blisters. Which degree of burn does this most likely represent?

Accepted Answer

Second-degree burn

Question 3

Which pigment is primarily responsible for the yellow to orange coloration in the palms and soles of the skin?

Accepted Answer

Carotene

Question 4

Which of the following is NOT considered an appendage of the skin?

Accepted Answer

Papillary layer

Question 5

A patient is diagnosed with melanoma. Which cell type is affected in this form of skin cancer?

Accepted Answer

Melanocytes

Question 6

Which layer of the skin contains blood vessels, nerve fibers, and lymphatic vessels, and binds the epidermis to underlying tissues?

Accepted Answer

Dermis

Question 7

Which type of sweat gland is most active during emotional stress and is found in the axillary and groin regions?

Accepted Answer

Apocrine gland

Question 8

Which function of the integumentary system is most directly related to the presence of dendritic cells and macrophages?

Accepted Answer

Biological barrier

Question 9

A patient with third-degree burns over a large area is at immediate risk for which life-threatening complication?

Accepted Answer

Dehydration and electrolyte imbalance

Question 10

Which of the following best describes the structure of the epidermis?

Accepted Answer

Keratinized stratified squamous epithelium

Question 11

Male pattern baldness is primarily caused by the follicular response to which hormone?

Accepted Answer

Dihydrotestosterone (DHT)

Question 12

Which skin cancer is characterized by rapid metastasis and resistance to chemotherapy, and is identified using the ABCDE rule?

Accepted Answer

Melanoma

Question 13

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

Accepted Answer

Synthesis of vitamin D

Question 14

Which layer of the skin is primarily composed of adipose tissue and functions as insulation and energy storage?

Accepted Answer

Hypodermis

Question 15

A patient presents with uneven skin pigmentation due to loss of melanocytes. What is the most likely diagnosis?

Accepted Answer

Vitiligo

Question 16

Which of the following equations best represents the relationship between sweat evaporation and heat loss from the body?

Accepted Answer

$$Q = m 	imes L_v$$

Question 17

Which of the following is a function of sebum produced by sebaceous glands?

Accepted Answer

Softens and waterproofs skin and hair

Question 18

Which layer of the dermis is responsible for forming fingerprints due to its projections into the epidermis?

Accepted Answer

Papillary layer

Question 19

A patient with a third-degree burn does not initially feel pain in the affected area. What is the most likely explanation?

Accepted Answer

Nerve endings are destroyed

Question 20

Which of the following best explains why the skin acts as a blood reservoir?

Accepted Answer

It stores up to 5% of the body's blood volume

The Integumentary System: Structure, Function, and Clinical Aspects

Study Guide - Practice Questions