Which layer of the skin stores fats, cushions body, and helps regulate body temperature?

Epidermis

Subcutaneous (hypodermis)

Dermis

Keratin

Answer and Explanation

The Correct Answer is B

A. Epidermis: The epidermis is the outermost layer of the skin responsible for protection but does not store fat or regulate temperature.

B. Subcutaneous (hypodermis): The subcutaneous layer (hypodermis) contains adipose (fat) tissue, which insulates the body, cushions internal structures, and stores energy.

C. Dermis: The dermis contains blood vessels, nerves, and connective tissue but does not store fat.

D. Keratin: Keratin is a protein found in the epidermis that provides strength and waterproofing but does not regulate temperature or store fat.

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Correct Answer is C

Explanation

A. Serous: Serous membranes line closed body cavities (e.g., pericardium, pleura, peritoneum) and do not open to the exterior.

B. Cutaneous: The cutaneous membrane is the skin, which covers the body but does not line internal passages.

C. Mucous: Mucous membranes line body cavities and passages that are open to the external environment, such as the respiratory, digestive, and urogenital tracts.

D. Synovial: Synovial membranes line joint cavities and produce synovial fluid for lubrication, but they do not line external body passages.

A. The pain receptors in the dermis have been destroyed B. The melanin within the skin acts as a pain reliever C. The burn site has not yet become infected D. He is immobile and not moving the injured site

Correct Answer is A

Explanation

A. The pain receptors in the dermis have been destroyed: Third-degree burns penetrate the entire dermis and often destroy nerve endings, reducing the ability to feel pain at the site of injury.

B. The melanin within the skin acts as a pain reliever: Melanin is responsible for skin pigmentation and does not have analgesic properties.

C. The burn site has not yet become infected: The presence or absence of infection does not determine pain perception in third-degree burns.

D. He is immobile and not moving the injured site: While movement may exacerbate pain, third-degree burns often result in reduced pain due to nerve destruction.

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Which layer of the skin stores fats, cushions body, and helps regulate body temperature?

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Naxlex Comprehensive Predictor Exams

Which epithelial membranes protect by forming a lining for all passages that are open to the exterior of the body?

Correct Answer is C

Explanation

Kevin suffered third degree burns over both lower extremities. On admission to the hospital, he was given large amounts of fluid intravenously and placed on sterile sheets. Despite his severe burns, the nurse knows that Kevin might not require high doses of pain medicine because:

Correct Answer is A

Explanation

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