Question 1

A patient presents with a yellowish tint to their skin and the whites of their eyes. Based on your knowledge of skin pigments and clinical color changes, which underlying condition is most likely responsible for this appearance?

Accepted Answer

Jaundice due to liver dysfunction

Question 2

Which of the following best explains why the epidermis acts as a barrier against water loss and bacterial invasion?

Accepted Answer

It is composed of stratified squamous epithelium

Question 3

A child with a vitamin D deficiency is most likely to develop which of the following conditions, and why?

Accepted Answer

Rickets, because vitamin D is necessary for calcium absorption

Question 4

Which layer of the skin is primarily responsible for the skin's elasticity, and what is a clinical sign of decreased elasticity?

Accepted Answer

Reticular layer of the dermis; decreased skin turgor

Question 5

A person receives a deep cut that damages the reticular layer of the dermis. Which of the following is a likely consequence during the healing process?

Accepted Answer

Formation of a scar due to dense, inflexible collagen fibers

Question 6

Which of the following statements about the hypodermis is correct?

Accepted Answer

It functions as insulation, energy storage, and cushioning

Question 7

A patient is experiencing excessive dandruff. Which gland is most likely overactive, and what is its primary secretion?

Accepted Answer

Sebaceous gland; sebum

Question 8

Which of the following best describes the main function of melanocytes in the skin?

Accepted Answer

Producing melanin to protect against UV radiation

Question 9

A person with albinism is at increased risk for which of the following, and why?

Accepted Answer

UV-induced skin damage, due to lack of melanin

Question 10

Which of the following is TRUE regarding the growth of hair and nails?

Accepted Answer

Hair growth occurs at the hair matrix; nail growth occurs at the nail root

Question 11

A patient presents with blue-tinged skin and lips. Which pigment is primarily responsible for this appearance, and what does it indicate?

Accepted Answer

Hemoglobin; low oxygen saturation (cyanosis)

Question 12

Which of the following scenarios best illustrates the function of the arrector pili muscle?

Accepted Answer

A person gets goosebumps when cold or frightened

Question 13

Which of the following is the most dangerous type of skin cancer, and why?

Accepted Answer

Melanoma, because it is highly metastatic and deadly

Question 14

A person with severe burns is at greatest risk for which of the following complications, and why?

Accepted Answer

Sepsis, due to increased risk of infection

Question 15

Which of the following best describes the difference between eccrine and apocrine sweat glands?

Accepted Answer

Eccrine glands are involved in thermoregulation; apocrine glands are active in the axilla and groin

Question 16

A patient is found to have decreased skin turgor. Which of the following is the most likely underlying cause?

Accepted Answer

Dehydration

Question 17

Which of the following statements about the epidermis is correct?

Accepted Answer

It is composed of stratified squamous epithelium and is avascular

Question 18

A person with psoriasis has skin cells that move from the stratum basale to the stratum corneum much faster than normal. What is a likely consequence of this abnormality?

Accepted Answer

Thicker, scaly patches of skin

Question 19

Which of the following is a function of dendritic cells in the epidermis?

Accepted Answer

Immune defense against pathogens

Question 20

A person who spends a lot of time in the sun develops a tan. Which process best explains this change in skin color?

Accepted Answer

Increased melanin production by melanocytes

Chapter 5: The Integumentary System – Structured Study Notes

Study Guide - Practice Questions

Study Guide - Flashcards