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ATI RN · ATI Medical Surgical · Integumentary System Multiple Choice Questions and Answers

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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. is produced from the amino acid tyrosine

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

C. protects DNA from the damaging effects of UV radiation

D. is usually some shade of brown or black

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

Question 2 of 5

Full thickness burns to more than 20% of the skin surface is a life-threatening situation. Why is this?

A. The synthesis of vitamin D (calcitriol) is severely compromised.

B. The loss of skin sensation prevents access to environmental information.

C. The body is not able to prevent water loss from the burnt area.

D. Soft internal tissues are abraded by the external environment.

Correct Answer: The body is not able to prevent water loss from the burnt area.

Question 3 of 5

Choose the incorrect statement below.

A. Keratinocytes produce keratin

B. Merkel cells are associated with a sensory nerve ending.

C. Melanocytes produce melanin

D. Dendrocytes produce dendrocidin.

Correct Answer: Dendrocytes produce dendrocidin.

Question 4 of 5

Skin color is due to:

A. Keratin, Melanin

B. Carotene, Melanin, and Hemoglobin

C. Melanin, Carotene

D. Keratin, Melanin, and Hemoglobin

Correct Answer: Carotene, Melanin, and Hemoglobin

Question 5 of 5

Which of the following word pairs is (are) appropriate?

A. iatcgument-gland

B. integument-tissue

C. integument-organ

D. all the above

Correct Answer: integument-organ

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