Q: Which equation best represents the calculation of total body surface area (BSA) affected by burns using the Rule of Nines?

$$\text{Total BSA} = \sum \text{Percentage of each region affected}$$

Question 1

Which of the following best describes the function of the arrector pili muscle in the skin?

Accepted Answer

It contracts to cause hair to stand upright, aiding in thermoregulation and producing 'goosebumps'.

Question 2

A patient presents with a burn that affects the epidermis and the upper (papillary) layer of the dermis. According to burn classification, what degree of burn does this patient have?

Accepted Answer

2nd degree burn

Question 3

Which of the following substances is primarily responsible for the antimicrobial properties of sweat?

Accepted Answer

Dermicidin

Question 4

The cuticle of the hair shaft is best described as:

Accepted Answer

The outer layer consisting of overlapping layers of single cells

Question 5

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

Accepted Answer

Production of insulin

Question 6

Which equation best represents the calculation of total body surface area (BSA) affected by burns using the Rule of Nines?

Accepted Answer

$$	ext{Total BSA} = \sum 	ext{Percentage of each region affected}$$

Question 7

Which of the following glands is classified as holocrine and is responsible for secreting an oily substance that softens hair and skin?

Accepted Answer

Sebaceous gland

Question 8

A person with albinism lacks which of the following in their hair follicles?

Accepted Answer

Melanocytes

Question 9

Which of the following best explains why nails appear pink under normal conditions?

Accepted Answer

Underlying capillaries in the nail bed

Question 10

Which of the following is a biological barrier provided by the skin?

Accepted Answer

Dendritic cells of the epidermis presenting antigens to white blood cells

Question 11

Which of the following is TRUE regarding eccrine sweat glands?

Accepted Answer

They are most abundant on palms, soles, and forehead.

Question 12

Which of the following is a metabolic function of the skin?

Accepted Answer

Synthesis of vitamin D for calcium absorption

Question 13

Which of the following substances can penetrate the physical barrier of the skin?

Accepted Answer

Lipid-soluble substances

Question 14

Which of the following best describes the secretion method of apocrine sweat glands?

Accepted Answer

Merocrine (exocytosis)

Question 15

During cold exposure, which physiological response occurs in the skin to conserve heat?

Accepted Answer

Dermal blood vessels constrict

Question 16

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

Accepted Answer

Epidermis, dermis, hypodermis

Question 17

Which of the following is a function of sebum?

Accepted Answer

Bactericidal properties

Question 18

Which of the following best describes the role of the hair matrix?

Accepted Answer

It is the actively dividing area of the bulb that produces hair cells.

Question 19

Which of the following is TRUE regarding the acid mantle of the skin?

Accepted Answer

It is a chemical barrier that retards bacterial multiplication due to low pH.

Question 20

Which of the following is a real-life example of a modified apocrine gland?

Accepted Answer

Ceruminous gland (earwax)

Skin Appendages and Functions: Hair, Nails, Glands, and Clinical Aspects

Study Guide - Practice Questions

Study Guide - Flashcards