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NCLEX Neurology Practice Questions Questions
Question 1 of 5
The functional unit of the nervous system is the
Correct Answer: B
Rationale: The neuron is the basic structural and functional unit of the nervous system, capable of receiving, processing, and transmitting signals.
Question 2 of 5
Which division of the human nervous system carries signals to skeletal muscles?
Correct Answer: D
Rationale: The motor system (part of the somatic nervous system) controls skeletal muscle movement, distinct from the autonomic system’s visceral control.
Question 3 of 5
Our biological clock, which regulates the sleep-wake cycle, is housed within the
Correct Answer: B
Rationale: The suprachiasmatic nucleus in the hypothalamus controls the circadian rhythm, including sleep-wake cycles.
Question 4 of 5
Like other systems in the body, the nervous system is composed of organs, principally the brain, spinal cord, nerves, and
Correct Answer: A
Rationale: The nervous system includes organs like the brain, spinal cord, nerves, and ganglia (clusters of neuron cell bodies in the PNS), whereas axons and neurons are components, and dura mater is a protective layer.
Question 5 of 5
The neuron processes that normally receives incoming stimuli are called:
Correct Answer: B
Rationale: Dendrites are the branched processes of neurons that receive incoming signals and convey them toward the cell body.