Question 1

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

Accepted Answer

Production of red blood cells

Question 2

Which layer of the skin is primarily responsible for waterproofing and preventing dehydration?

Accepted Answer

Stratum granulosum

Question 3

A patient presents with a deep cut that bleeds and is painful. Which layer of the skin has most likely been penetrated?

Accepted Answer

Dermis

Question 4

Which cell type in the epidermis is responsible for immune defense against pathogens?

Accepted Answer

Dendritic (Langerhans) cell

Question 5

The hypodermis is best described as:

Accepted Answer

A layer containing mostly areolar and adipose tissue

Question 6

Which of the following best explains why the skin is considered the most vulnerable organ?

Accepted Answer

It is exposed to radiation, trauma, infection, and chemicals

Question 7

Which structure is responsible for the formation of fingerprints?

Accepted Answer

Dermal papillae

Question 8

A person with a genetic defect that prevents the production of keratin would most likely experience which of the following symptoms?

Accepted Answer

Increased risk of dehydration and infection

Question 9

Which of the following statements about the stratum basale is correct?

Accepted Answer

It is the site of stem cell division

Question 10

Which of the following best describes the process of transdermal absorption?

Accepted Answer

The administration of drugs through the skin

Question 11

Which layer of the dermis is responsible for the mobility of leukocytes and contains many small blood vessels?

Accepted Answer

Papillary layer

Question 12

A patient develops stretch marks after rapid weight gain. Which layer of the skin is primarily affected?

Accepted Answer

Reticular layer of the dermis

Question 13

Which of the following is TRUE regarding the blood supply to the epidermis?

Accepted Answer

It receives nutrients by diffusion from the dermis

Question 14

Which of the following best describes the role of lamellar granules in the epidermis?

Accepted Answer

They release a lipid mixture for waterproofing

Question 15

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

Accepted Answer

Stratum basale, stratum spinosum, stratum granulosum, stratum corneum

Question 16

Which of the following best explains why the hypodermis is a common site for drug injections?

Accepted Answer

It is highly vascular, allowing rapid absorption

Question 17

A person with a mutation that prevents the formation of tight junctions in the epidermis would most likely experience which of the following?

Accepted Answer

Increased water loss through the skin

Question 18

Which of the following is a function of the piloerector muscles?

Accepted Answer

Contraction in response to cold or fear, causing goose bumps

Question 19

Which of the following best describes the composition of the dermis?

Accepted Answer

Connective tissue with collagen, elastic fibers, and fibroblasts

Question 20

Which of the following is TRUE regarding the difference between thick and thin skin?

Accepted Answer

Thick skin is found on the palms, soles, and corresponding surfaces of fingers and toes

The Integumentary System: Structure and Function

Study Guide - Practice Questions