Question 1

Which of the following best describes the primary function of the epidermis in the integumentary system?

Accepted Answer

It acts as a barrier to pathogens and prevents water loss.

Question 2

A patient presents with yellowish skin. Which pigment is most likely responsible for this coloration, and what is the associated homeostatic imbalance?

Accepted Answer

Carotene; excessive dietary intake of carotene

Question 3

Which cell type is primarily responsible for producing melanin in the epidermis?

Accepted Answer

Melanocytes

Question 4

A burn patient is diagnosed with a third-degree burn. Which of the following best describes the extent of tissue damage?

Accepted Answer

Epidermis, dermis, and subcutaneous tissue are destroyed.

Question 5

Which equation best represents the relationship between sweat production and body temperature regulation?

Accepted Answer

$$ Q = m \cdot c \cdot \Delta T $$

Question 6

Sebaceous glands are most closely associated with which of the following structures?

Accepted Answer

Hair follicles

Question 7

Which of the following is a homeostatic imbalance associated with sebaceous glands?

Accepted Answer

Acne

Question 8

A person with a deficiency in hemoglobin may exhibit which skin color change, and what is the underlying cause?

Accepted Answer

Pale skin; decreased oxygen transport

Question 9

Which of the following best describes the function of the subcutaneous tissue?

Accepted Answer

It anchors the skin to underlying structures and stores fat.

Question 10

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

Accepted Answer

Production of red blood cells

Question 11

Which type of skin cancer is most likely to metastasize rapidly and is considered the most dangerous?

Accepted Answer

Melanoma

Question 12

During aging, which change occurs in the integumentary system that increases susceptibility to injury?

Accepted Answer

Decrease in subcutaneous fat and elasticity

Question 13

Which structure is responsible for nail growth and is located at the base of the nail?

Accepted Answer

Nail matrix

Question 14

Which of the following best describes the difference between vellus and terminal hair?

Accepted Answer

Vellus hair is fine and unpigmented; terminal hair is coarse and pigmented.

Question 15

A patient with male-pattern baldness is experiencing which type of homeostatic imbalance?

Accepted Answer

Alopecia

Question 16

Which of the following equations best represents the rate of water loss through the skin?

Accepted Answer

$$ J = -D \frac{\Delta C}{\Delta x} $$

Question 17

Which cell type in the epidermis is most involved in immune defense?

Accepted Answer

Langerhans cells

Question 18

Which of the following best describes the development of the integumentary system from embryo to fetus?

Accepted Answer

The epidermis forms from ectoderm and dermis from mesoderm.

Question 19

Which of the following is a function of sweat glands?

Accepted Answer

Excretion of metabolic wastes and thermoregulation

Question 20

A patient presents with cyanosis. Which pigment is most likely involved, and what does this indicate?

Accepted Answer

Hemoglobin; poor oxygenation of blood

Chapter 5: The Integumentary System – Study Guide

Study Guide - Practice Questions

Study Guide - Flashcards