Q: Which of the following is a correct formula for estimating the percentage of body surface area burned using the Rule of Nines?

$$ \text{Total Burn Area} = (\text{Number of affected regions} \times 9\%) + 1\% $$

Question 1

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

Accepted Answer

Blood cell production

Question 2

A patient presents with a blue coloration of the skin and mucous membranes. Which condition is most likely indicated, and what is the underlying cause?

Accepted Answer

Cyanosis; low oxygen concentration in the blood

Question 3

Which layer of the epidermis is responsible for ongoing cell division and contains melanocytes?

Accepted Answer

Stratum basale

Question 4

A burn patient has blisters and damage to both the epidermis and part of the dermis. According to the classification of burns, what type of burn is this?

Accepted Answer

Second-degree burn

Question 5

Which of the following best describes the main difference between thick and thin skin?

Accepted Answer

Thick skin contains a stratum lucidum; thin skin does not.

Question 6

Which gland is responsible for producing an oily substance that lubricates and protects the skin and hair?

Accepted Answer

Sebaceous gland

Question 7

A patient presents with a rapidly growing, asymmetrical, darkly pigmented skin lesion with irregular borders. Which type of skin cancer is most likely?

Accepted Answer

Malignant melanoma

Question 8

Which of the following structures is NOT found in the dermis?

Accepted Answer

Keratinocytes

Question 9

Which of the following best explains why elderly individuals are more prone to dehydration and overheating?

Accepted Answer

Decreased sweat production and loss of subcutaneous fat

Question 10

A surgeon is planning an incision and wants to minimize scarring. According to the concept of cleavage (tension) lines, what is the best approach?

Accepted Answer

Make the incision parallel to tension lines

Question 11

Which of the following is a correct formula for estimating the percentage of body surface area burned using the Rule of Nines?

Accepted Answer

$$ 	ext{Total Burn Area} = (	ext{Number of affected regions} 	imes 9\%) + 1\% $$

Question 12

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

Accepted Answer

Langerhans (dendritic) cell

Question 13

Which of the following best describes the process of keratinization?

Accepted Answer

Cells in the stratum basale divide and migrate to the surface, filling with keratin as they move upward

Question 14

Which of the following glands is most responsible for body odor after puberty?

Accepted Answer

Apocrine sweat glands

Question 15

A patient with albinism would most likely have which of the following characteristics?

Accepted Answer

An inability to produce melanin

Question 16

Which of the following best describes the difference between regeneration and fibrosis in tissue repair?

Accepted Answer

Regeneration restores original tissue function; fibrosis replaces damaged tissue with scar tissue

Question 17

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

Accepted Answer

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

Question 18

Which of the following best explains why the palms of the hands and soles of the feet do not have hair?

Accepted Answer

They are covered by thick skin, which lacks hair follicles

Question 19

Which of the following is a function of the lamellar (Pacinian) corpuscle found in the dermis?

Accepted Answer

Detecting deep pressure and vibration

Question 20

A patient presents with a localized overgrowth of melanocytes. What is the most likely diagnosis?

Accepted Answer

Nevus (mole)

The Integumentary System: Structure, Function, and Clinical Aspects

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