A nurse is teaching a client about the functions of the central nervous system (CNS). Which of the following statements by the client indicates a need for further teaching?

The CNS processes sensory information from the body.

The CNS generates motor commands to control movement.

The CNS regulates cognitive and emotional functions.

The CNS connects the brain and spinal cord to the rest of the body.

Answer and Explanation

The Correct Answer is D

Choice A reason:

This is a correct statement, as the CNS receives sensory information from various receptors in the body and interprets it.

Choice B reason:

This is a correct statement, as the CNS initiates and coordinates motor commands to control voluntary and involuntary movements.

Choice C reason:

This is a correct statement, as the CNS is involved in higher cognitive functions such as memory, learning, reasoning, and emotions.

Choice D reason:

This is an incorrect statement, as this is the function of the PNS. The PNS consists of cranial and spinal nerves that connect the CNS to the rest of the body and transmit sensory and motor signals.

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Correct Answer is A

Explanation

Choice A reason:

This is the correct answer because Spurling's test is used to diagnose cervical radiculopathy by reproducing radicular pain with neck extension, lateral flexion, and compression. A positive result indicates nerve root compression by a herniated disc, osteophyte, or other lesion.

Choice B reason:

This is incorrect because straight leg raise test is used to diagnose lumbar radiculopathy by reproducing radicular pain with hip flexion and knee extension. A positive result indicates nerve root compression by a herniated disc or other lesion in the lower back.

Choice C reason:

This is incorrect because Tinel's sign is used to diagnose peripheral neuropathy by reproducing tingling or paresthesia with tapping over a damaged nerve. A positive result indicates nerve regeneration or irritation by a scar, tumor, or other lesion.

Choice D reason:

This is incorrect because Phalen's test is used to diagnose carpal tunnel syndrome by reproducing numbness or tingling in the median nerve distribution with wrist flexion for 60 seconds. A positive result indicates median nerve compression by a thickened flexor retinaculum or other lesion in the wrist.

A. The PNS consists of cranial and spinal nerves that connect the CNS to the rest of the body. B. The PNS is divided into two subdivisions: the somatic nervous system and the autonomic nervous system. C. The PNS controls voluntary movements of skeletal muscles and provides sensory feedback from the skin, joints, and muscles. D. The PNS regulates involuntary functions of smooth muscles, cardiac muscles, and glands.

Correct Answer is D

Explanation

Choice A reason:

This is a correct statement, as the PNS consists of cranial and spinal nerves that connect the CNS to the rest of the body and transmit sensory and motor signals.

Choice B reason:

This is a correct statement, as the PNS is divided into two subdivisions: the somatic nervous system (SNS) and the autonomic nervous system (ANS).

Choice C reason:

This is a correct statement, as the PNS controls voluntary movements of skeletal muscles and provides sensory feedback from the skin, joints, and muscles through the SNS.

Choice D reason:

This is an incorrect statement, as this is the function of the ANS, which is a subdivision of the PNS. The ANS regulates involuntary functions of smooth muscles, cardiac muscles, and glands through its two branches: the sympathetic nervous system (SNS) and the parasympathetic nervous system (PNS).

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A nurse is teaching a client about the functions of the central nervous system (CNS). Which of the following statements by the client indicates a need for further teaching?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

Correct Answer is A

Explanation

A nurse is reviewing the anatomy of the peripheral nervous system (PNS) with a group of nursing students. Which of the following statements by a student indicates a need for further teaching?

Correct Answer is D

Explanation

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