ATI RN
Autonomic Nervous System NCLEX Questions Questions
Question 1 of 5
A bundle of axons in the central nervous system is a:
Correct Answer: D
Rationale: A tract is a bundle of axons in the CNS (e.g., corticospinal tract). Nerves are PNS axon bundles, cell bodies are soma, and neuroglia support.
Question 2 of 5
What ion is necessary to cause the release of neurotransmitters from the synaptic vesicles?
Correct Answer: B
Rationale: Calcium (Ca2+) influx into the axon terminal triggers neurotransmitter release from synaptic vesicles.
Question 3 of 5
The ventral root of the spinal cord contains fibers and the dorsal root of the spinal cord contains fibers.
Correct Answer: B
Rationale: Ventral roots carry motor (efferent) fibers to muscles; dorsal roots carry sensory (afferent) fibers to the CNS.
Question 4 of 5
A ridge or bump of the cerebral cortex is called a
Correct Answer: B
Rationale: A gyrus is a ridge on the cerebral cortex. Fissures and sulci are grooves, and the insula is a hidden lobe.
Question 5 of 5
What cerebral area is important for muscular control of speech?
Correct Answer: A
Rationale: Broca’s area (frontal lobe) controls the motor aspects of speech production. Wernicke’s is for comprehension.