Which of the following is a function of the integumentary system?
Oxygen transport
Temperature regulation
Nutrient absorption
Hormone secretion
The Correct Answer is B
A. Oxygen transport: Oxygen transport is performed by blood (hemoglobin in red blood cells) rather than the integumentary system.
B. Temperature regulation: The integumentary system helps regulate body temperature through sweat production and cutaneous blood flow adjustments.
C. Nutrient absorption: Nutrient absorption primarily occurs in the gastrointestinal tract, not the skin (with the exception of limited topical absorption).
D. Hormone secretion: The skin contributes to endocrine activity by synthesizing vitamin D precursors, but widespread hormone secretion is not its main function.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Dermis:The dermis contains blood vessels and many inflammatory responses that produce redness and swelling and is involved when inflammation extends below the epidermis.
B. Hypodermis:The hypodermis (subcutaneous layer) contains adipose tissue and larger vessels; involvement here indicates deeper inflammation than what is described as superficial.
C. Subcutaneous tissue:Subcutaneous tissue is synonymous with the hypodermis and indicates deeper involvement rather than a superficial process.
D. Epidermis:The epidermis is the most superficial layer of the skin and is affected in superficial inflammatory conditions such as dermatitis or mild contact irritation.
Correct Answer is C
Explanation
A. Irregular bone:Irregular bones have complex shapes (for example vertebrae) and do not describe the long, cylindrical femur.
B. Short bone:Short bones are roughly cube-shaped (for example carpals) and do not apply to the femur.
C. Long bone:Long bones are elongated with a shaft and two ends, which describes the femur as the prototypical long bone.
D. Flat bone:Flat bones are thin and plate-like (for example the sternum and skull bones) and are not the shape of the femur.
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