Q: Which of the following equations best represents the relationship between skin surface area and body weight, given that skin accounts for approximately 16% of body weight and covers 1.5 to 2 m²?

$$\text{Skin weight} = 0.16 \times \text{Total body weight}$$

Question 1

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

Accepted Answer

Regulation of blood glucose levels

Question 2

The epidermis is classified as which type of tissue?

Accepted Answer

Stratified squamous epithelium

Question 3

Which layer of the epidermis contains stem cells responsible for replacing superficial keratinocytes?

Accepted Answer

Stratum basale (stratum germinativum)

Question 4

A patient presents with a burn that has damaged the stratum corneum. Which type of water loss will increase as a result?

Accepted Answer

Insensible perspiration

Question 5

Which pigment accumulates in the epidermis and subcutaneous layer and can be converted to vitamin A?

Accepted Answer

Carotene

Question 6

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

Accepted Answer

Thick skin has five layers of keratinocytes, while thin skin has four

Question 7

Which structure in the dermis is responsible for detecting deep pressure and vibration?

Accepted Answer

Lamellar (Pacinian) corpuscles

Question 8

A surgical incision made parallel to tension (cleavage) lines in the skin will:

Accepted Answer

Remain shut and heal well

Question 9

Which layer of the skin contains large arteries and veins and is the site for subcutaneous injections?

Accepted Answer

Subcutaneous (hypodermis) layer

Question 10

Which of the following best describes the role of collagen fibers in the dermis?

Accepted Answer

They provide strength and resist stretching

Question 11

A patient with jaundice has yellowing of the skin. Which layer and pigment are most likely involved?

Accepted Answer

Epidermis; bilirubin

Question 12

Which of the following is a function of epidermal growth factor (EGF)?

Accepted Answer

Promotes division of basal cells

Question 13

Which of the following equations best represents the relationship between skin surface area and body weight, given that skin accounts for approximately 16% of body weight and covers 1.5 to 2 m²?

Accepted Answer

$$	ext{Skin weight} = 0.16 	imes 	ext{Total body weight}$$

Question 14

Which of the following is most likely to cause a loss of skin turgor?

Accepted Answer

Dehydration

Question 15

A patient receives a subcutaneous injection. Which tissue type is primarily involved in the absorption of the medication?

Accepted Answer

Adipose tissue

Question 16

Which of the following glands is NOT considered an accessory structure of the integumentary system?

Accepted Answer

Thyroid gland

Question 17

Which cell type in the epidermis is most abundant and responsible for producing keratin?

Accepted Answer

Keratinocytes

Question 18

Which of the following best explains why excessive UV exposure can be harmful to skin cells?

Accepted Answer

It damages DNA and can cause cancer

Question 19

Which layer of the skin is most likely to become inflamed in dermatitis caused by poison ivy?

Accepted Answer

Papillary layer of the dermis

Question 20

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

Accepted Answer

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

The Integumentary System: Structure, Function, and Organization

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