ATI RN
Autonomic Nervous System NCLEX Questions Questions
Question 1 of 5
Neurotransmitters are released into the synaptic cleft in response to the arrival of:
Correct Answer: A
Rationale: Action potentials trigger Ca2+ influx, releasing neurotransmitters. Resting potential is stable, vesicles contain, nodes conduct.
Question 2 of 5
The total volume of cerebrospinal fluid in the human central nervous system at any given time is approximately:
Correct Answer: B
Rationale: CSF volume is ~150 mL, with 500 mL produced daily. 50 mL is too low, 1 L excessive.
Question 3 of 5
Cerebral tracts that carry information from the cerebrum to the lower parts of the central nervous system are known as:
Correct Answer: B
Rationale: Projection tracts (e.g., corticospinal) carry signals from cerebrum to lower CNS. Others connect differently.
Question 4 of 5
The basal nuclei, part of the motor system, are involved in the initiation and control of:
Correct Answer: A
Rationale: Basal nuclei (ganglia) initiate and refine voluntary movements.
Question 5 of 5
The thalamus serves as a relay station for sensory information, directing it to the appropriate regions of the cerebral cortex, and is part of the:
Correct Answer: A
Rationale: The thalamus in the diencephalon relays sensory input to the cortex.