ATI RN
Questions About Nervous System Questions
Question 1 of 5
The gaps in between the myelin sheath are called:
Correct Answer: D
Rationale: Nodes of Ranvier are gaps between myelin segments on axons, enabling saltatory conduction. Axon, cell body, and dendrite are neuron parts.
Question 2 of 5
Which of the following accounts for the movement of neurotransmitters across a synaptic cleft?
Correct Answer: D
Rationale: Neurotransmitters move across the synaptic cleft by diffusion, driven by concentration gradients after release.
Question 3 of 5
Describe the structure of the spinal cord.
Correct Answer: C
Rationale: The spinal cord has gray matter (cell bodies) inside, surrounded by white matter (axons), with dorsal roots carrying sensory fibers.
Question 4 of 5
Which of the following is NOT a lobe of the cerebrum?
Correct Answer: D
Rationale: Cerebellar refers to the cerebellum, not a cerebral lobe. Frontal, parietal, and occipital are cerebrum lobes.
Question 5 of 5
Places on the cerebral cortex where integration occurs are
Correct Answer: B
Rationale: Association areas integrate sensory and motor information for higher functions like reasoning and memory.