ATI RN
Integumentary System CPT Questions and Answers Questions
Question 1 of 5
The layer of the skin that contains the blood vessels and nerves that are closest to the surface of the skin is the ______ layer.
Correct Answer: B
Rationale: The correct answer is B: Papillary. This layer is located right below the epidermis, contains blood vessels, nerves, and capillaries closest to the skin surface, aiding in temperature regulation and sensation. The subcutaneous layer (A) is deeper and primarily consists of fat cells. The reticular layer (C) is deeper than the papillary layer and mainly provides structural support. Hypodermal (D) is not a recognized skin layer term. Thus, the papillary layer is the correct choice due to its proximity to the skin surface and functions related to blood vessels and nerves.
Question 2 of 5
If the epidermis, dermis, and part of hypodermis are burned, it is classified as
Correct Answer: A
Rationale: The correct answer is A: full thickness. When the epidermis, dermis, and part of the hypodermis are burned, it involves damage to all layers of the skin, including the deepest layer. This results in complete destruction of the skin layers, making it a full-thickness burn. The other choices are incorrect because: B: Second degree burns involve damage to the epidermis and part of the dermis, not the hypodermis. C: Partial thickness burns affect only parts of the epidermis and dermis, not the hypodermis. D: First degree burns are superficial, involving only the epidermis and not the dermis or hypodermis.
Question 3 of 5
Dandruff is a disorder that results in dry skin flakes forming in the scalp. A common cause of dandruff could be
Correct Answer: A
Rationale: Step-by-step rationale: 1. Dandruff is caused by excessive shedding of dead skin cells on the scalp. 2. Inflammation around sebaceous glands can lead to increased production of sebum, which can contribute to dandruff. 3. Sebaceous glands produce oil that can mix with dead skin cells and lead to flaking. 4. Inactive apocrine sweat glands, inactive merocrine sweat glands, and overactive arrector pili muscles are not directly related to the production of skin flakes on the scalp. Summary: - Choice A is correct as inflammation around sebaceous glands can lead to increased sebum production, contributing to dandruff. - Choices B, C, and D are incorrect as they are not directly associated with the production of dry skin flakes on the scalp.
Question 4 of 5
Merocrine sweat glands
Correct Answer: A
Rationale: The correct answer is A because merocrine sweat glands secrete a watery fluid directly onto the surface of the skin through exocytosis. This process helps regulate body temperature by evaporative cooling. Choice B is incorrect as merocrine sweat glands are simple coiled tubular glands, not compound alveolar glands. Choice C is incorrect as the number and activity of merocrine sweat glands decrease with aging. Choice D is incorrect as body odor is primarily produced by apocrine sweat glands, not merocrine sweat glands.
Question 5 of 5
________ sweat glands are widely distributed across the body surface, ________ glands are located wherever hair follicles exist, and ________ sweat glands are found only in a few areas.
Correct Answer: A
Rationale: The correct answer is A: Merocrine; sebaceous; apocrine. 1. Merocrine sweat glands are widely distributed across the body surface, responsible for regulating body temperature through evaporation. 2. Sebaceous glands are associated with hair follicles, producing sebum to lubricate and protect the skin. 3. Apocrine sweat glands are found in specific areas like the armpits and groin, secreting a thicker sweat that can cause body odor. In summary, choices B, C, and D are incorrect because they do not accurately describe the distribution and functions of the different types of sweat glands as outlined in the question.