ATI RN
Integumentary System of Pediatrics Questions
Question 1 of 5
The hair matrix contains
Correct Answer: D
Rationale: The hair matrix is the actively growing part of the hair bulb and consists of a layer of basal cells that divide to produce the hair.
Question 2 of 5
If you cut yourself and bacteria enter the wound, which of the following cells would help get rid of the bacteria?
Correct Answer: C
Rationale: Langerhans cells are immune cells in the epidermis that detect and help eliminate pathogens like bacteria.
Question 3 of 5
After a skin injury, the body initiates a wound-healing response. The first step of this response is the formation of a blood clot to stop bleeding. Which of the following would be the next response?
Correct Answer: B
Rationale: After clotting, the next step in wound healing is inflammation and tissue repair, involving increased production of connective tissue to rebuild the damaged area.
Question 4 of 5
A rash that is visible but not palpable consists of small solitary lesions of 0.5-1 cm in diameter. Which term best describes these lesions?
Correct Answer: A
Rationale: Macules are flat, non-palpable lesions <1 cm. Papules are palpable, patches are flat lesions >1 cm, plaques are palpable and larger, and wheals are edematous. The description fits macules.
Question 5 of 5
Match the condition with the appearance under the Wood lamp (ultraviolet light): Erythrasma
Correct Answer: A
Rationale: Erythrasma (Corynebacterium minutissimum) fluoresces pink-orange or coral-red under Wood lamp, matching A.