Question 1

Which layer of the skin is primarily responsible for storing fat and acting as a cushion and insulator for the body?

Accepted Answer

Hypodermis (subcutaneous layer)

Question 2

A patient presents with blue skin coloration (cyanosis). Which physiological condition is most likely responsible for this symptom?

Accepted Answer

Low oxygenation of hemoglobin

Question 3

Which cell type in the epidermis is responsible for producing the pigment that protects against UV radiation?

Accepted Answer

Melanocytes

Question 4

Which layer of the epidermis is only found in thick skin, such as the palms and soles?

Accepted Answer

Stratum lucidum

Question 5

A topical medication is able to act on the body despite the skin's waterproof barrier. Which property of the stratum granulosum allows for this?

Accepted Answer

Water-resistant glycolipid granules

Question 6

Which layer of the epidermis contains a single row of stem cells undergoing rapid division?

Accepted Answer

Stratum basale

Question 7

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

Accepted Answer

Production of red blood cells

Question 8

A patient with Addison's disease presents with a bronzed skin appearance. What is the underlying cause?

Accepted Answer

Inadequate steroid hormone production

Question 9

Which structure is responsible for 'goosebumps' when a person is cold or frightened?

Accepted Answer

Arrector pili muscle

Question 10

Which layer of the dermis is responsible for providing strength and resilience due to its dense, irregular connective tissue?

Accepted Answer

Reticular layer

Question 11

A person with jaundice has a yellow cast to their skin. Which organ dysfunction is most likely responsible?

Accepted Answer

Liver

Question 12

Which type of sweat gland is primarily responsible for thermoregulation and is found all over the body?

Accepted Answer

Eccrine sweat gland

Question 13

Which pigment is responsible for the yellow to orange coloration most obvious in the palms and soles?

Accepted Answer

Carotene

Question 14

Which cell type in the epidermis acts as a macrophage and helps activate the immune system?

Accepted Answer

Epidermal dendritic (Langerhans) cell

Question 15

A patient presents with pallor (blanching) of the skin. Which of the following is NOT a likely cause?

Accepted Answer

Excessive sun exposure

Question 16

Which layer of the epidermis is the thickest and consists of 20-30 rows of dead, flat, keratinized membranous sacs?

Accepted Answer

Stratum corneum

Question 17

Which of the following equations best represents the percentage of body weight accounted for by the skin, given an average adult weight $$W (in kg) $$and skin weight $$S (in kg$$)?

Accepted Answer

$$ \frac{S}{W} 	imes 100 $$

Question 18

Which of the following is a correct sequence of layers from the deepest to the most superficial in the epidermis?

Accepted Answer

Stratum basale, stratum spinosum, stratum granulosum, stratum corneum

Question 19

Which appendage of the skin is responsible for producing sebum and is relatively inactive until puberty?

Accepted Answer

Sebaceous gland

Question 20

A patient with male pattern baldness is most likely experiencing a follicular response to which hormone?

Accepted Answer

Dihydrotestosterone (DHT)

Anatomy & Physiology Study Notes: The Integumentary System and Skin Structure

Study Guide - Practice Questions

Study Guide - Flashcards