$$\text{Total Burn Area} = \sum \text{Area of Each Region} \times \text{Rule of Nines}$$

Question 1

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

Accepted Answer

Production of red blood cells

Question 2

The cutaneous membrane consists of which two main layers?

Accepted Answer

Epidermis and dermis

Question 3

Which accessory structure of the integumentary system is responsible for producing sebum?

Accepted Answer

Sebaceous glands

Question 4

A patient presents with a bluish hue to their skin after a severe asthma attack. What is the most likely cause of this coloration?

Accepted Answer

Cyanosis due to reduced oxygenation of hemoglobin

Question 5

Which layer of the epidermis is responsible for the formation of fingerprints?

Accepted Answer

Stratum basale

Question 6

What is the main difference between thin skin and thick skin?

Accepted Answer

Thick skin contains a stratum lucidum and lacks hair follicles

Question 7

Which pigment is primarily responsible for the brownish-black coloration of skin and provides protection against UV radiation?

Accepted Answer

Eumelanin

Question 8

A person with a genetic lack of melanin resulting in white hair, pale skin, and pink eyes is most likely affected by which condition?

Accepted Answer

Albinism

Question 9

Which layer of the dermis is responsible for the formation of stretch marks (striae) due to tearing of collagen fibers?

Accepted Answer

Reticular layer

Question 10

Why does a parallel incision to the lines of cleavage in the skin heal better than a perpendicular incision?

Accepted Answer

Parallel incisions remain closed due to the orientation of collagen and elastic fibers

Question 11

Which type of sweat gland is most active during sexual arousal and stress, and is found in the armpits and groin?

Accepted Answer

Apocrine gland

Question 12

A patient suffers a burn that destroys the epidermis, dermis, and underlying tissue. What degree of burn is this, and what is a common complication?

Accepted Answer

Third-degree burn; fluid loss and infection

Question 13

Which formula is used to estimate the percentage of body surface area affected by burns?

Accepted Answer

$$	ext{Total Burn Area} = \sum 	ext{Area of Each Region} 	imes 	ext{Rule of Nines}$$

Question 14

Which of the following changes is NOT typically associated with aging of the integumentary system?

Accepted Answer

Increased production of vitamin D

Question 15

Which cell type in the epidermis is responsible for immune defense against pathogens?

Accepted Answer

Dendritic cells (macrophages)

Question 16

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

Accepted Answer

Jaundice due to bilirubin buildup

Question 17

Which structure anchors the epidermis to the dermis and helps prevent slippage between layers?

Accepted Answer

Dermal papillae and epidermal ridges

Question 18

Which of the following is a correct sequence of the layers of the epidermis from deepest to most superficial in thick skin?

Accepted Answer

Stratum basale, stratum spinosum, stratum granulosum, stratum lucidum, stratum corneum

Question 19

Which type of hair is most abundant on the body surface of adult women?

Accepted Answer

Vellus hair

Question 20

A patient has a wound that is healing with the formation of granulation tissue and a scab. Which phase of skin repair is occurring?

Accepted Answer

Proliferative phase

Chapter 5: The Integumentary System – Structure and Function

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