ATI RN
Nervous System Multiple Choice Questions and Answers Questions
Question 1 of 5
In the peripheral nervous system, Schwann cells wrap around the:
Correct Answer: C
Rationale: Schwann cells wrap around axons in the PNS to form myelin. Axon hillock and cell body are unmyelinated, dendrites rarely myelinated. (Answer corrected from 'nodes' to 'axon' based on context.)
Question 2 of 5
In a chemical synapse, neurotransmitters are stored in:
Correct Answer: C
Rationale: Synaptic vesicles in the axon terminal store neurotransmitters for release. Myelin insulates, hillock initiates, nodes conduct.
Question 3 of 5
The layer of the meninges that is most vulnerable to infection and inflammation is the:
Correct Answer: C
Rationale: The arachnoid mater is vulnerable to inflammation (e.g., meningitis). Pia is deep, dura tough, subarachnoid is a space.
Question 4 of 5
The primary function of arachnoid villi is to:
Correct Answer: C
Rationale: Arachnoid villi reabsorb CSF into venous sinuses. Choroid plexuses produce, ions are regulated broadly, support is CSF’s role.
Question 5 of 5
The four major lobes of the cerebral cortex are the frontal, parietal, temporal, and:
Correct Answer: A
Rationale: The occipital lobe is a cerebral lobe (vision). Cerebellar is cerebellum, limbic is a system, insular is deep.