ATI RN
Test Questions on Autonomic Nervous System Questions
Question 1 of 5
The cerebellum and cerebrum are covered by
Correct Answer: B
Rationale: The cerebellum and cerebrum are covered by gray matter (cortex), containing neuronal cell bodies. White matter is internal, neuroglia are supportive cells, and ganglia are PNS.
Question 2 of 5
A bundle of axons in the peripheral nervous system is a:
Correct Answer: B
Rationale: A nerve is a bundle of axons in the PNS (e.g., sciatic nerve). Tracts are CNS, cell bodies are soma, and neuroglia support.
Question 3 of 5
What mechanism helps keep the neuron membrane at its resting potential?
Correct Answer: B
Rationale: The sodium-potassium pump (active transport) maintains resting potential by pumping 3 Na+ out and 2 K+ in, countering ion leakage.
Question 4 of 5
The protective membranes that enclose the brain and spinal cord are called:
Correct Answer: C
Rationale: Meninges (dura, arachnoid, pia mater) are protective membranes around the brain and spinal cord. CSF cushions, choroid plexus produces CSF, and tracts are axon bundles.
Question 5 of 5
The white matter of the spinal cord
Correct Answer: A
Rationale: White matter contains ascending (sensory) and descending (motor) tracts. Cell bodies and reflex centers are in gray matter.