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NCLEX Neurology Practice Questions Questions
Question 1 of 5
Nerve impulses are picked up by a neuron's (nerve cell):
Correct Answer: A
Rationale: Dendrites are the branched extensions of a neuron that receive incoming nerve impulses from other neurons or sensory receptors.
Question 2 of 5
The effect of a sending neuron on a receiving neuron is typically greater when neurotransmitters bind to the receiving neuron and the synapse is the base of the receiving cell's axon.
Correct Answer: A
Rationale: Synapses closer to the axon hillock (base of the axon) have a greater impact due to less signal attenuation, and more neurotransmitter enhances the effect.
Question 3 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 4 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 5 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.