Which layer of the skin stores fats, cushions body, and helps regulate body temperature?
Epidermis
Subcutaneous (hypodermis)
Dermis
Keratin
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Types of muscle tissue: skeletal, cardiac, adipose: This group is incorrect because adipose (fat) is not a type of muscle tissue. The three correct types of muscle tissue are skeletal, cardiac, and smooth.
B. Types of tissue: epithelial, connective, nerve, muscle: The four main types of tissues in the human body are epithelial, connective, nervous, and muscle tissue.
C. Types of nervous cells: neurons, neuroglia. The nervous system consists of neurons (which transmit electrical signals) and neuroglia (which support and protect neurons).
D. Serous membranes: pleura, peritoneum, pericardium. The pleura (lungs), peritoneum (abdominal organs), and pericardium (heart) are all serous membranes.
Correct Answer is D
Explanation
A. Blistering: Blistering is characteristic of second-degree (partial-thickness) burns, not first-degree burns.
B. Leathery skin: Leathery or tough skin is a sign of a third-degree (full-thickness) burn, which extends through the dermis.
C. Waxy skin: Waxy, white, or charred skin is seen in deep burns, including third- and fourth-degree burns, not first-degree burns.
D. Erythema (redness): First-degree burns (superficial burns) affect only the epidermis and present as erythema, pain, and possible mild swelling without blistering.
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