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HESI LPN · HESI LPN Medical Surgical Nursing · HESI Integumentary System Test Questions and Answers PDF

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Showing all 5 practice questions with expert explanatory rationales.

Question 1 of 5

All of the following are true of the pigment melanin except that it

A. decreases in concentration within cells during exposure to the sun.

B. is usually some shade of brown or black.

C. is released through melanosomes.

D. protects DNA from the damaging effects of UV radiation.

Correct Answer: decreases in concentration within cells during exposure to the sun.

Question 2 of 5

What are some of the adaptations that the integumentary system has evolved to help organisms survive in different environments?

A. Animals in cold climates have thick fur or feathers to help them retain heat.

B. Animals in desert climates have thick skin to prevent water loss.

C. Aquatic animals have scales or fins to protect their skin from the water.

D. All of the above.

Correct Answer: All of the above.

Question 3 of 5

The mediastinum is located in which of the following cavities contains?

A. Dorsal

B. Thoracic

C. Abdominal

D. Cranial

Correct Answer: Thoracic

Question 4 of 5

Mammary glands are -

A. Merocrine

B. Holocrine

C. Apocrine

D. None of these

Correct Answer: Apocrine

Question 5 of 5

Arrector pili muscles are-

A. Voluntary

B. Voluntary as well as involuntary

C. Involuntary

D. None of the above

Correct Answer: Involuntary

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