Question 1

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

Accepted Answer

Production of red blood cells in the dermis

Question 2

A patient presents with a burn that is red, swollen, and painful, but blisters are present. Which degree of burn does this most likely represent?

Accepted Answer

Second-degree burn

Question 3

Which layer of the epidermis is primarily responsible for the continuous production of new keratinocytes?

Accepted Answer

Stratum basale

Question 4

A surgeon is planning an incision parallel to the cleavage lines in the reticular layer of the dermis. What is the main advantage of this approach?

Accepted Answer

It promotes faster healing and less scarring

Question 5

Which cell type in the epidermis is responsible for producing melanin, and what is the primary function of melanin?

Accepted Answer

Melanocyte; protects DNA from UV radiation

Question 6

A patient with pale skin is found to have low levels of melanin. Which pigment is most likely responsible for the pinkish hue of their skin?

Accepted Answer

Hemoglobin

Question 7

Which of the following best describes the function of sebaceous glands?

Accepted Answer

Secrete sebum to lubricate and waterproof the skin and hair

Question 8

A person is unable to sweat due to a genetic disorder affecting their sweat glands. Which physiological process would be most directly impaired?

Accepted Answer

Thermoregulation

Question 9

Which of the following statements about the papillary layer of the dermis is TRUE?

Accepted Answer

It contains dermal papillae that form fingerprints

Question 10

Which structure is responsible for the formation of goosebumps?

Accepted Answer

Arrector pili muscle

Question 11

A patient has a wound that is bleeding and exposes hair follicles and sweat glands, but not underlying fat. Which skin layer has been penetrated?

Accepted Answer

Dermis

Question 12

Which of the following is a characteristic of malignant melanoma?

Accepted Answer

It is highly metastatic and resistant to chemotherapy

Question 13

Which of the following best explains why third-degree burns are often painless?

Accepted Answer

Nerve endings in the affected area are destroyed

Question 14

Which of the following is TRUE regarding the hypodermis?

Accepted Answer

It anchors the skin to underlying muscles and stores fat

Question 15

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

Accepted Answer

Stratum basale, stratum spinosum, stratum granulosum, stratum lucidum, stratum corneum

Question 16

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

Accepted Answer

Increased risk of dehydration due to loss of waterproof barrier

Question 17

Which of the following best describes the role of Langerhans cells in the epidermis?

Accepted Answer

They act as immune sentinels, patrolling for pathogens

Question 18

Which of the following is a function of the dermal papillae?

Accepted Answer

Increase surface area for exchange of gases, nutrients, and waste products

Question 19

Which of the following glands is responsible for producing earwax?

Accepted Answer

Ceruminous gland

Question 20

A patient presents with a suspicious skin lesion. According to the ABCD rule for melanoma, which of the following findings is most concerning?

Accepted Answer

Diameter larger than 6 mm

The Integumentary System: Structure, Function, and Clinical Aspects

Study Guide - Practice Questions