Approximately how much fluid does the body lose per day in insensible perspiration?
750
250
650
500
The Correct Answer is D
Rationale:
A. 750 mL is higher than the normal daily loss through insensible perspiration and would typically only occur with conditions like fever or very hot environments.
B. 250 mL is too low; the body normally loses more than this each day through skin and respiratory evaporation.
C. 650 mL is close but still above the usual average range for a healthy adult at rest.
D. 500 mL is the approximate average fluid lost daily through insensible perspiration (skin and lungs), making this the correct answer.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is {"dropdown-group-1":"B","dropdown-group-2":"B","dropdown-group-3":"A"}
Explanation
Rationale:
A. The human vertebral column is divided into regions: 7 cervical vertebrae in the neck, 12 thoracic vertebrae in the chest region (each articulating with a pair of ribs), and 5 lumbar vertebrae in the lower back. These vertebrae provide structural support, flexibility, and protection of the spinal cord.
B. This is incorrect because the cervical region has 7 vertebrae, not 5.
C. Incorrect, as both the cervical and thoracic counts are wrong.
D. Incorrect, because the lumbar region has 5 vertebrae, not 7.
Correct Answer is A
Explanation
Rationale:
A. The dermis lies beneath the epidermis and contains blood vessels, lymphatic vessels, nerves, sweat glands, sebaceous glands, and hair follicles. The blood vessels in the dermis play a key role in regulating body temperature and nourishing both the dermis itself and the avascular epidermis above it.
B. Also called the hypodermis, this layer lies below the dermis and is composed mainly of fat and connective tissue. While it provides insulation, cushioning, and energy storage, the question specifically asks for the skin layer containing blood vessels, which is the dermis.
C. The epidermis is the outermost skin layer. It is avascular, meaning it contains no blood vessels. It relies on diffusion from the dermis for nutrient and waste exchange.
D. Another name for the subcutaneous layer. Although it contains larger blood vessels that supply the dermis, it is technically not considered part of the skin itself.
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