A nurse is assisting with teaching a group of nursing students about the pathophysiology of the spinal cord. Which of the following statements by a nursing student indicates understanding?

"The ascending tract of the spinal cord processes information in the brain."

"The descending tracts of the spinal cord deliver the CNS motor information to neurons in the muscle."

"The sensory receptors are in the muscles."

"The motor neurons are in the dermal layer of skin."

Answer and Explanation

The Correct Answer is B

A. The ascending tract of the spinal cord transmits sensory information to the brain, but it does not process it; processing occurs in the brain itself.
B. This statement accurately describes the function of the descending tracts, which carry motor commands from the central nervous system (CNS) to the muscles, facilitating movement.
C. Sensory receptors are located in various tissues throughout the body, including the skin, not just in the muscles.
D. Motor neurons are not found in the dermal layer; they are located in the spinal cord and the peripheral nervous system, where they innervate muscles.

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Correct Answer is A

Explanation

A. A heart rate of 56/min indicates bradycardia, which can reduce cardiac output and lead to dizziness due to decreased cerebral perfusion.
B. A high temperature is not directly associated with bradycardia; fever typically causes tachycardia.
C. Hypoglycemia does not have a direct relationship with bradycardia; it is more commonly associated with symptoms like sweating, confusion, and tremors.
D. Cigarette smoking typically contributes to conditions like tachycardia and vascular constriction, not bradycardia.

A. “I will decrease my activity to prevent added stress on my legs.” B. “I will need to massage my legs frequently to prevent a buildup of fluid.” C. “I will inspect my legs every day for changes in color, size, and temperature.” D. “I will keep my legs in a dependent position.”

Correct Answer is C

Explanation

A. Decreasing activity is not recommended for peripheral venous disease; clients are encouraged to engage in physical activity to promote circulation and prevent complications.
B. Massaging legs may not be advisable as it could exacerbate swelling and discomfort; instead, elevation is often recommended.
C. Inspecting legs daily for changes is essential for early detection of complications such as skin changes or ulcers, indicating the client understands the importance of monitoring their condition.
D. Keeping legs in a dependent position can worsen venous pooling and swelling; elevation is generally recommended to improve venous return.

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A nurse is assisting with teaching a group of nursing students about the pathophysiology of the spinal cord. Which of the following statements by a nursing student indicates understanding?

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Naxlex Comprehensive Predictor Exams

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Explanation

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Correct Answer is C

Explanation

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