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.

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.

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.

Correct Answer: A

Rationale: The correct answer is A: skin. The skin forms the protective outer covering of the entire body, serving as a barrier against external elements and preventing dehydration. It also regulates body temperature and houses sensory receptors. Nevus (B) is a mole, not a protective covering. Polyp (C) is a growth in the body, not a protective covering. Bulla (D) is a large fluid-filled blister, not the protective outer covering of the body.

Correct Answer: D

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.