ATI RN
Questions About the Nervous System Questions
Question 1 of 5
The cerebrum is divided into two hemispheres, connected by a bundle of nerve fibers known as the:
Correct Answer: A
Rationale: The corpus callosum connects cerebral hemispheres. Medulla, thalamus, and pons have other roles.
Question 2 of 5
The gustatory cortex, involved in the perception of taste, is located in the:
Correct Answer: C
Rationale: The gustatory cortex, often in the insular/temporal region, processes taste.
Question 3 of 5
The dorsal root of a spinal nerve primarily contains:
Correct Answer: A
Rationale: Dorsal roots carry sensory (afferent) fibers to the CNS.
Question 4 of 5
The cervical plexus is formed by the spinal nerves from which spinal levels?
Correct Answer: A
Rationale: The cervical plexus arises from C1-C4, serving neck and diaphragm.
Question 5 of 5
Which of the following amino acids can function as a neurotransmitter in the CNS?
Correct Answer: B
Rationale: Glutamic acid (glutamate) is the primary excitatory neurotransmitter in the CNS. Leucine, lysine, and valine are not neurotransmitters.