Q: Which formula would you use to estimate the percentage of body surface area affected by burns using the rule of nines?

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

Question 1

Which of the following best describes the cutaneous membrane?

Accepted Answer

It is a dry membrane consisting of keratinized stratified squamous epithelium and dense connective tissue.

Question 2

Which layer of the epidermis is responsible for mitosis and the generation of new skin cells?

Accepted Answer

Stratum basale

Question 3

A patient presents with a burn that is red, painful, and blistered, but the epithelium can regrow. Which type of burn is this?

Accepted Answer

Second-degree burn

Question 4

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

Accepted Answer

Regulation of blood glucose levels

Question 5

Which structure is responsible for pulling hair upright when you are cold or frightened?

Accepted Answer

Arrector pili muscle

Question 6

Which pigment is primarily responsible for the yellow to brown to black coloration of skin?

Accepted Answer

Melanin

Question 7

Which type of membrane lines the body cavities that are closed to the exterior and consists of simple squamous epithelium and areolar connective tissue?

Accepted Answer

Serous membrane

Question 8

A patient has a skin lesion that is asymmetrical, has irregular borders, multiple colors, and is larger than 6 mm. Which type of skin cancer is most likely?

Accepted Answer

Malignant melanoma

Question 9

Which of the following glands is responsible for producing a secretion that makes the skin soft, moist, and kills bacteria?

Accepted Answer

Sebaceous gland

Question 10

Which layer of the skin contains blood vessels, sweat and oil glands, and deep pressure receptors?

Accepted Answer

Reticular layer of dermis

Question 11

Which of the following is TRUE regarding synovial membranes?

Accepted Answer

They consist only of loose areolar connective tissue and secrete lubricating fluid.

Question 12

A patient with third-degree burns over 12% of their body meets which critical burn criterion?

Accepted Answer

Over 10% of body has third- or fourth-degree burns

Question 13

Which of the following best explains why the stratum corneum is important for water loss prevention?

Accepted Answer

It is composed of shingle-like dead cells filled with keratin.

Question 14

Which of the following is a function of eccrine sweat glands?

Accepted Answer

Regulation of body temperature through production of acidic sweat

Question 15

Which of the following is NOT a characteristic of the papillary layer of the dermis?

Accepted Answer

Composed of dense irregular connective tissue

Question 16

Which formula would you use to estimate the percentage of body surface area affected by burns using the rule of nines?

Accepted Answer

$$ 	ext{Total Burn Area} = (	ext{Number of Areas} 	imes 9) + 1 $$

Question 17

Which of the following is a real-life consequence of impaired blood flow to the skin, as seen in blanching?

Accepted Answer

Paleness due to anemia or low blood pressure

Question 18

Which cell type in the epidermis is associated with sensory nerve endings and functions as a touch receptor?

Accepted Answer

Merkel cell

Question 19

Which of the following best describes the difference between benign and malignant skin neoplasms?

Accepted Answer

Malignant neoplasms invade other body areas, while benign neoplasms do not.

Question 20

Which of the following is a common cause of athlete's foot?

Accepted Answer

Fungal infection (Tinea pedis)

Membranes and the Integumentary System: Structure and Function

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