Question 1

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

Accepted Answer

Production of red blood cells

Question 2

A patient presents with a burn that is red, painful, and only affects the surface of the epidermis. Which type of burn is this?

Accepted Answer

First-degree burn

Question 3

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

Accepted Answer

Stratum basale

Question 4

Exposure to ultraviolet (UV) radiation increases the production of which pigment in the skin?

Accepted Answer

Melanin

Question 5

Which of the following best explains why the skin of a fair-skinned person appears red during exercise in hot weather?

Accepted Answer

Dilated blood vessels in the dermis increase blood flow

Question 6

Which structure is responsible for detecting deep pressure and vibration in the skin?

Accepted Answer

Pacinian corpuscles

Question 7

A tattoo pigment is injected into the skin. Which layer is primarily affected and why does the pigment persist?

Accepted Answer

Dermis; pigment is trapped within fibroblasts and persists

Question 8

Which of the following is TRUE regarding the difference between thin and thick skin?

Accepted Answer

Thick skin contains five layers and is found on the soles of the feet

Question 9

Which type of gland is responsible for producing a watery secretion important for thermoregulation and excretion?

Accepted Answer

Merocrine (eccrine) sweat gland

Question 10

A patient with a deficiency in vitamin D$$_3 is at $$risk for which condition?

Accepted Answer

Rickets, due to impaired bone mineralization

Question 11

Which phase of skin repair involves the formation of granulation tissue and migration of basal cells along the wound edge?

Accepted Answer

Migratory phase

Question 12

Which of the following best describes the role of keratin in the integumentary system?

Accepted Answer

Serves as a water repellent and protects against abrasion

Question 13

Which accessory structure of the skin is responsible for producing hairs that protect the skull and provide touch sensation?

Accepted Answer

Hair follicles

Question 14

Which of the following is a correct statement about the difference in melanin transfer between light-skinned and dark-skinned individuals?

Accepted Answer

Melanin is transferred to more superficial layers in dark-skinned individuals

Question 15

Which type of skin cancer is the most serious and is characterized by rapid growth and metastasis through the lymphatic system?

Accepted Answer

Malignant melanoma

Question 16

Which connective tissue fiber type in the dermis allows for stretching and recoil, and is reduced due to aging and UV exposure?

Accepted Answer

Elastic fibers

Question 17

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

Accepted Answer

Provides antibacterial protection and lubricates the hair shaft

Question 18

Which of the following best explains why pulling a hair is painful but cutting a hair is not?

Accepted Answer

Hair follicle is surrounded by a hair plexus of sensory nerves

Question 19

Which hormone stimulates fibroblast activity and collagen production, thickening the epidermis and promoting wound repair?

Accepted Answer

Growth hormone (GH)

Question 20

A patient has a third-degree burn covering 20% of their body surface area. Which of the following complications is most likely to occur?

Accepted Answer

Increased risk of dehydration and infection due to loss of skin barrier

Unit 5: The Integumentary System – Structure, Function, and Clinical Relevance

스터디 가이드 - 연습 문제