Question 1

Which of the following is NOT a function of the skin?

Accepted Answer

Synthesis of red blood cells

Question 2

Which cell type in the epidermis is primarily responsible for producing the pigment that determines skin color?

Accepted Answer

Melanocytes

Question 3

A patient presents with a burn that is red, swollen, and painful, but only affects the epidermis. What degree of burn is this?

Accepted Answer

First-degree burn

Question 4

Which layer of the epidermis contains stem cells, melanocytes, and Merkel cells?

Accepted Answer

Stratum basale

Question 5

What is the main function of the arrector pili muscle?

Accepted Answer

Contracts to produce goosebumps

Question 6

Which pigment is responsible for the yellow-orange coloration of the skin, especially in individuals who consume large amounts of carrots?

Accepted Answer

Carotene

Question 7

Which of the following best describes the difference between eccrine and apocrine sweat glands?

Accepted Answer

Eccrine glands produce true sweat for temperature regulation, while apocrine glands produce a thicker secretion that may function in scent signaling.

Question 8

A person has a burn that involves the entire epidermis and dermis, appearing white, red, or black, and requires skin grafting. What type of burn is this?

Accepted Answer

Third-degree burn

Question 9

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

Accepted Answer

Stratum lucidum

Question 10

What is the primary function of sebum produced by sebaceous glands?

Accepted Answer

Lubricates hair and skin

Question 11

Which of the following is a correct application of the 'Rule of Nines' in estimating burn surface area?

Accepted Answer

The head represents 9% of the body surface area.

Question 12

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

Accepted Answer

Dendritic cells

Question 13

A patient presents with a suspicious mole. Which of the following is NOT a warning sign for melanoma according to the ABCDE rule?

Accepted Answer

Diameter less than 2 mm

Question 14

Which layer of the skin contains blood vessels, nerves, and is responsible for the strength and flexibility of the skin?

Accepted Answer

Dermis

Question 15

Which structure in the hair follicle contains stem cells that can regenerate hair?

Accepted Answer

Epithelial root sheath

Question 16

Which of the following is NOT a modification found in the dermis?

Accepted Answer

Stratum granulosum

Question 17

Which of the following statements about the hypodermis is TRUE?

Accepted Answer

It stores fat and provides heat insulation.

Question 18

Which of the following best explains why hair appears straight or curly?

Accepted Answer

The shape of the cross-section of the hair shaft

Question 19

Which type of hair is most likely to be found on the scalp and in the axillary and genital regions after puberty?

Accepted Answer

Terminal hair

Question 20

A patient with pale skin is found to have a bluish tint after exposure to cold. Which pigment is most likely responsible for this color change?

Accepted Answer

Hemoglobin

The Integumentary System (Chapter 5): Structure, Function, and Clinical Relevance

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