Heat balance: $$\text{Heat Production} = \text{Heat Loss}$$

Question 1

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

Accepted Answer

Regulation of blood glucose levels

Question 2

A patient presents with a burn that affects only the epidermis. Which degree of burn is this, and what symptoms would you expect?

Accepted Answer

First-degree burn; redness and mild pain

Question 3

Subcutaneous injections are administered into which layer of the skin, and what is a primary advantage of this route?

Accepted Answer

Hypodermis; allows for slow, sustained release of medication

Question 4

Which pigment is primarily responsible for protecting the skin from UV radiation?

Accepted Answer

Eumelanin

Question 5

Which of the following best describes the structure of thick skin?

Accepted Answer

Contains a stratum lucidum and five distinct layers in the epidermis

Question 6

Which accessory structure of the skin is responsible for detecting deep pressure and vibration?

Accepted Answer

Lamellar (Pacinian) corpuscle

Question 7

Albinism is a genetic disorder characterized by a lack of skin and hair color. Which cellular process is disrupted in individuals with albinism?

Accepted Answer

Melanin synthesis by melanocytes

Question 8

Which of the following is a correct pairing of skin cancer subtype and the cell type it originates from?

Accepted Answer

Basal cell carcinoma – keratinocytes in the stratum basale

Question 9

Which equation best represents the relationship between heat production and heat loss in the body?

Accepted Answer

Heat balance: $$	ext{Heat Production} = 	ext{Heat Loss}$$

Question 10

Why do hands and feet tend to feel colder than the rest of the body in a cold environment?

Accepted Answer

Blood vessels constrict, reducing blood flow to the shell and prioritizing core temperature

Question 11

Which of the following is a real-life consequence of overusing hand sanitizer on the skin?

Accepted Answer

Decreased sebum, leading to dryness and increased risk of infection

Question 12

Which of the following best describes the difference between exocrine and endocrine glands?

Accepted Answer

Exocrine glands secrete products into ducts; endocrine glands release hormones directly into the bloodstream

Question 13

Which layer of the skin contains the accessory structures such as hair follicles, sweat glands, and sensory receptors?

Accepted Answer

Dermis

Question 14

Which of the following factors does NOT influence skin color?

Accepted Answer

Number of sweat glands

Question 15

Which of the following is a primary reason newborns are at greater risk for heat loss?

Accepted Answer

They have a large surface area relative to their volume and less insulation

Question 16

Which of the following is a correct description of the papillary layer of the dermis?

Accepted Answer

It nourishes and supports the epidermis with loose connective tissue

Question 17

Which process is primarily responsible for heat loss from the skin?

Accepted Answer

Radiation

Question 18

A patient with a third-degree burn will have damage to which layers of the skin?

Accepted Answer

Epidermis, dermis, and hypodermis

Question 19

Which equation best describes the rate of heat loss from the skin by evaporation?

Accepted Answer

$$	ext{Heat Loss}_{	ext{evap}} = m 	imes L$$

Question 20

Which of the following is a real-world example of impaired thermoregulation in the elderly?

Accepted Answer

Feeling cold in a warm room due to reduced blood supply to the dermis

The Integumentary System: Structure, Function, and Clinical Relevance

Study Guide - Practice Questions