Question 1

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

Accepted Answer

Production of red blood cells

Question 2

The cutaneous membrane (skin) consists of which layers?

Accepted Answer

Epidermis and dermis

Question 3

During thermoregulation, what happens to blood vessels in the dermis when the body is hot?

Accepted Answer

They dilate, increasing blood flow to the skin

Question 4

Sweating is an example of which type of feedback loop?

Accepted Answer

Negative feedback loop

Question 5

Which cell type in the epidermis is most responsible for producing keratin?

Accepted Answer

Keratinocytes

Question 6

A patient with a deficiency in keratin production would most likely experience which symptom?

Accepted Answer

Their skin will tear easily upon exposure to mechanical stress.

Question 7

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

Accepted Answer

Dendritic cells

Question 8

Which layer of the epidermis has the greatest regenerative capacity?

Accepted Answer

Stratum basale

Question 9

Which of the following is true about thick skin?

Accepted Answer

Stratum lucidum is only found in thick skin.

Question 10

Why do the cells in the more superficial layers of the epidermis die?

Accepted Answer

They are far away from any blood supply, causing a lack of nutrients.

Question 11

Which part of the integument is responsible for providing strength and flexibility?

Accepted Answer

Reticular layer

Question 12

If someone did not have a papillary layer in their dermis, which of the following would occur?

Accepted Answer

They would lose some sensation of touch.

Question 13

Which layer of the skin is NOT technically part of the skin but anchors it to underlying tissues?

Accepted Answer

Hypodermis

Question 14

Elderly people have less subcutaneous fat than younger people. Which of these is something they experience due to having a thinner hypodermis?

Accepted Answer

They are more sensitive to the cold.

Question 15

Which of the following layers of the epidermis is responsible for generating new epidermal cells?

Accepted Answer

Stratum basale

Question 16

Which epidermal layers contain dead, flattened keratinocytes?

Accepted Answer

Stratum lucidum and stratum corneum

Question 17

What is the main function of melanocytes in the epidermis?

Accepted Answer

Produce melanin to protect skin from UV damage

Question 18

Which of the following best describes the process of keratinization?

Accepted Answer

Keratinocytes fill with keratin and harden as they move toward the surface

Question 19

Why does the body store excess fat in the hypodermis?

Accepted Answer

All of the above.

Mini-Textbook Study Guide: The Integumentary System (Ch. 5)

Study Guide - Practice Questions