ATI RN
Autonomic Nervous System NCLEX Questions Questions
Question 1 of 5
Neuroglial cell of the PNS that forms a myelin sheath around a portion of an axon and participates in axon regeneration after injury.
Correct Answer: C
Rationale: Schwann cells in the PNS myelinate axons and aid regeneration after injury. Wallerian degeneration is a process, neuroblastoma is a tumor, and axosomatic is a synapse type.
Question 2 of 5
An extension of a neuron that conducts a nerve impulse toward a synapse; may be myelinated or unmyelinated.
Correct Answer: A
Rationale: A nerve fiber (axon) conducts impulses toward a synapse. Myelin sheath insulates, axon is a synonym, and effectors are targets.
Question 3 of 5
A malignant tumor that consists of immature nerve cells (neuroblasts); occurs most commonly in the abdomen and most frequently in the suprarenal glands.
Correct Answer: B
Rationale: Neuroblastoma is a malignant tumor of immature neuroblasts, common in children’s adrenal glands. Axoplasm is axon cytoplasm, action potential is a signal, and axosomatic is a synapse.
Question 4 of 5
Movement in which a part of the body moves inferiorly.
Correct Answer: D
Rationale: Depression is the anatomical movement of a body part downward (e.g., shoulder). Action potential is a signal, astrocytes are glia, and interneurons are neurons.
Question 5 of 5
Expanded distal end of an axon terminal that contains synaptic vesicles.
Correct Answer: A
Rationale: Synaptic end bulbs are the expanded ends of axon terminals containing synaptic vesicles. Axon terminals are broader, vesicles are contents, and neurotransmitter is a chemical.