Question 1

Which of the following best describes the main function of the stratum corneum in the epidermis?

Accepted Answer

It provides a waterproof barrier and protects underlying tissues from abrasion and infection.

Question 2

A patient presents with a burn that is red, painful, and blisters are present. Which degree of burn is most likely, and which layers of the skin are affected?

Accepted Answer

Second-degree burn; both the epidermis and part of the dermis are affected.

Question 3

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

Accepted Answer

Production of red blood cells

Question 4

Which cell type in the epidermis is primarily responsible for producing the pigment that gives skin its color?

Accepted Answer

Melanocytes

Question 5

A patient is diagnosed with basal cell carcinoma. Which layer of the skin does this cancer most commonly originate from?

Accepted Answer

Stratum basale

Question 6

Which of the following best explains why the skin is able to act as a barrier to water loss?

Accepted Answer

The accumulation of keratin and lipids in the stratum corneum

Question 7

Which of the following equations best represents the relationship between sweat evaporation and heat loss from the body?

Accepted Answer

$Q = m 	imes L_v$

Question 8

Which of the following is a distinguishing feature of the hypodermis compared to the dermis?

Accepted Answer

It is primarily composed of adipose tissue and serves as an energy reserve.

Question 9

A person with albinism lacks which enzyme, resulting in the absence of melanin production?

Accepted Answer

Tyrosinase

Question 10

Which of the following best describes the process of wound healing in the skin?

Accepted Answer

Fibroblasts in the dermis produce collagen to repair the damaged area.

Question 11

Which of the following is a correct match between a skin gland and its secretion?

Accepted Answer

Eccrine gland – watery, salt-rich sweat

Question 12

Which of the following best explains why elderly individuals are more prone to skin tears and bruising?

Accepted Answer

Thinning of the dermis and loss of collagen and elastic fibers

Question 13

Which of the following is the primary function of Langerhans cells in the epidermis?

Accepted Answer

Act as immune sentinels by presenting antigens to T cells

Question 14

A patient has a genetic defect that prevents the formation of desmosomes in the epidermis. Which of the following symptoms would most likely result?

Accepted Answer

Blistering and loss of cohesion between skin cells

Question 15

Which of the following best describes the difference between thick and thin skin?

Accepted Answer

Thick skin has a thicker stratum corneum and contains the stratum lucidum, while thin skin does not.

Anatomy & Physiology Study Guide: Integumentary, Skeletal, and Musculoskeletal Systems

Study Guide - Practice Questions

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