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 epidermis is responsible for the active mitosis of keratinocytes?

Accepted Answer

Stratum basale

Question 3

A patient presents with a burn that damages the epidermis and the entire dermis. Which accessory structures are most likely destroyed?

Accepted Answer

Sebaceous glands and hair follicles

Question 4

Which structure is primarily responsible for producing sebum?

Accepted Answer

Sebaceous gland

Question 5

Which of the following best describes the function of the arrector pili muscle?

Accepted Answer

Contracts to cause hair to stand up

Question 6

Which layer of the dermis contains the dermal papillae that form fingerprints?

Accepted Answer

Papillary layer

Question 7

A histological slide shows thick skin with a prominent stratum lucidum. Where on the body was this sample most likely taken?

Accepted Answer

Palm of the hand

Question 8

Which of the following is TRUE regarding the distribution of touch receptors in the skin?

Accepted Answer

They are most dense in areas such as the fingertips and lips.

Question 9

Which of the following structures is NOT found in the epidermis?

Accepted Answer

Meissner's corpuscle

Question 10

A person is unable to sweat due to a genetic disorder. Which structure is most likely affected?

Accepted Answer

Eccrine gland

Question 11

Which of the following best explains why fingerprints are unique to each individual?

Accepted Answer

They are determined by the arrangement of dermal papillae during fetal development.

Question 12

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

Accepted Answer

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

Question 13

Which of the following equations best represents the relationship between surface area ($$A) $$and heat loss ($$Q) $$through the skin, assuming all other factors are constant?

Accepted Answer

$$Q = kA(T_1$ - T_2$)$$

Question 14

Which of the following best describes the function of the stratum corneum?

Accepted Answer

Provides a barrier to water loss and pathogens

Question 15

A patient has a mutation that prevents the production of melanin. Which cell type is most directly affected?

Accepted Answer

Melanocyte

Question 16

Which of the following is a correct statement about the difference between thick and thin skin?

Accepted Answer

Thick skin contains a stratum lucidum, while thin skin does not.

Question 17

Which of the following best describes the role of Meissner's corpuscles?

Accepted Answer

Detect light touch and texture

Question 18

Which of the following structures is responsible for the waterproof barrier of the skin?

Accepted Answer

Stratum granulosum

Question 19

A person with a genetic defect in collagen production would most likely have abnormalities in which layer of the skin?

Accepted Answer

Reticular layer of the dermis

Question 20

Which of the following best explains why the fingertips are more sensitive to touch than the back of the hand?

Accepted Answer

Fingertips have a higher density of touch receptors.

Unit 6: Integumentary System – Structure, Function, and Laboratory Analysis

Study Guide - Practice Questions

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