ATI RN
Autonomic Nervous System NCLEX Questions Questions
Question 1 of 5
Which of the following is NOT a component of the brainstem?
Correct Answer: A
Rationale: The brainstem includes midbrain, pons, and medulla oblongata. The diencephalon (thalamus, hypothalamus) is above the brainstem.
Question 2 of 5
Which sequence of a reflex arc is correct?
Correct Answer: A
Rationale: A reflex arc sequence is: receptor (detects stimulus), sensory neuron (to CNS), interneuron (integration), motor neuron (to effector), effector (response).
Question 3 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 4 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 5 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.