ATI RN
Questions About the Nervous System Questions
Question 1 of 5
The return of the neuron cell membrane to resting potential is called
Correct Answer: D
Rationale: Repolarization restores resting potential (~-70 mV) via K+ efflux after depolarization. Synaptic transmission is communication, polarization is resting, and depolarization is Na+ influx.
Question 2 of 5
The cerebral hemispheres are separated by the
Correct Answer: B
Rationale: The longitudinal fissure is the deep groove separating the cerebral hemispheres. The corpus callosum connects them.
Question 3 of 5
The primary visual area of the cerebrum is located in the lobe.
Correct Answer: B
Rationale: The primary visual area (V1) in the occipital lobe processes visual input from the eyes.
Question 4 of 5
The hypothalamus is part of the:
Correct Answer: C
Rationale: The hypothalamus is part of the diencephalon, below the thalamus, regulating autonomic and endocrine functions.
Question 5 of 5
Which of the following cranial nerves is NOT a sensory nerve?
Correct Answer: B
Rationale: Glossopharyngeal (CN IX) has motor (pharynx) and sensory (taste, throat) roles. Vestibulocochlear (hearing/balance), optic (vision), and olfactory (smell) are sensory only.