ATI RN
Autonomic Nervous System NCLEX Questions Questions
Question 1 of 5
Which of the following cranial nerves does NOT help control eye movement?
Correct Answer: A
Rationale: The optic nerve (CN II) is sensory (vision), not motor. Oculomotor (III), abducens (VI), and trochlear (IV) control eye muscles.
Question 2 of 5
The part of the neuron that receives signals from other neurons is called the:
Correct Answer: B
Rationale: Dendrites receive signals from other neurons. Axons transmit, synapses are communication gaps, and myelin insulates.
Question 3 of 5
Which type of axon conducts nerve impulses at the fastest speed?
Correct Answer: D
Rationale: Large-diameter, myelinated axons conduct fastest due to size (less resistance) and myelination (saltatory conduction). Smaller/unmyelinated axons are slower.
Question 4 of 5
Multipolar neurons have:
Correct Answer: B
Rationale: Multipolar neurons (e.g., motor neurons) have multiple dendrites and one axon. A is bipolar, C is rare, and D repeats B.
Question 5 of 5
In the central nervous system, the equivalent of Schwann cells are called:
Correct Answer: C
Rationale: Oligodendrocytes myelinate CNS axons, like Schwann cells in PNS. Satellite cells support PNS cell bodies, astrocytes nourish, microglia are immune.