Question 1

Which layer of the skin is primarily responsible for storing fat and providing insulation?

Accepted Answer

Hypodermis

Question 2

A patient presents with a deep cut that bleeds profusely. Which layer of the skin is most likely damaged?

Accepted Answer

Dermis

Question 3

Which cell type in the epidermis is responsible for producing the pigment that protects against UV radiation?

Accepted Answer

Melanocytes

Question 4

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

Accepted Answer

Stratum Lucidum

Question 5

A burn patient is assessed using the Rule of Nines. If both legs and the anterior trunk are burned, what percentage of the body surface area is affected?

$$	ext{Both legs} = 18\% 	imes 2 = 36\%$$ 
$$	ext{Anterior trunk} = 18\%$$ 
$$	ext{Total} = 36\% + 18\% = 54\%$$

Accepted Answer

$$54\%$$

Question 6

Which function of the integumentary system is most directly related to the synthesis of vitamin D?

Accepted Answer

Exposure to sunlight

Question 7

Which accessory structure of the skin is responsible for producing sebum?

Accepted Answer

Sebaceous gland

Question 8

A patient with melanoma is evaluated using the ABCD rule. What does the 'B' stand for?

Accepted Answer

Border

Question 9

Which pigment is responsible for the yellow-orange coloration of the skin?

Accepted Answer

Carotene

Question 10

Which layer of the epidermis contains actively dividing cells responsible for regeneration?

Accepted Answer

Stratum Basale

Question 11

A patient is diagnosed with alopecia. Which structure is most directly affected?

Accepted Answer

Hair follicles

Question 12

Which type of sweat gland is most abundant and plays a key role in thermoregulation?

Accepted Answer

Eccrine gland

Question 13

Which cell type in the dermis is primarily responsible for producing collagen and elastin fibers?

Accepted Answer

Fibroblasts

Question 14

A patient presents with a blister after touching a hot pan. Which degree of burn is most likely?

Accepted Answer

Second degree

Question 15

Which structure is responsible for causing 'goosebumps' when you are cold or frightened?

Accepted Answer

Arrector pili muscle

Question 16

Which layer of the dermis contains the dermal papillae that form fingerprints?

Accepted Answer

Papillary layer

Question 17

A patient with third-degree burns is at greatest risk for which immediate complication?

Accepted Answer

Infection and fluid loss

Question 18

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

Accepted Answer

Blood cell production

Question 19

A patient with pale skin is found to have low hemoglobin levels. Which pigment is most likely responsible for the change in skin color?

Accepted Answer

Hemoglobin

Question 20

Which layer of the epidermis is most superficial and consists of dead, keratinized cells?

Accepted Answer

Stratum Corneum

Chapter 5: The Integumentary System – Structure and Function of Skin

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