ATI RN
Autonomic Nervous System NCLEX Questions Questions
Question 1 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 2 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 3 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.
Question 4 of 5
The phrenic nerve, essential for controlling the diaphragm, is a major branch of the:
Correct Answer: A
Rationale: The phrenic nerve (C3-C5) from the cervical plexus controls the diaphragm.
Question 5 of 5
Which of the following types of cells is the most common in the CNS?
Correct Answer: A
Rationale: Astrocytes are the most abundant glial cells in the CNS, supporting neurons. 'Oligocytes' likely means oligodendrocytes, 'neurocytes' is unclear, and celiac cells are unrelated (gut).