ATI RN
Test Questions on Autonomic Nervous System Questions
Question 1 of 5
The majority of CSF is absorbed into the bloodstream through the:
Correct Answer: B
Rationale: Arachnoid villi absorb CSF into venous blood. Choroid plexuses produce, ependymal cells line, sinuses receive.
Question 2 of 5
The primary somatosensory cortex, responsible for processing tactile information such as touch and pressure, is located in the:
Correct Answer: B
Rationale: The primary somatosensory cortex (postcentral gyrus) in the parietal lobe processes touch.
Question 3 of 5
The hypothalamus plays a crucial role in:
Correct Answer: A
Rationale: The hypothalamus regulates homeostasis (temperature, hunger, thirst).
Question 4 of 5
The dorsal roots of spinal nerves contain:
Correct Answer: A
Rationale: Dorsal roots carry sensory (afferent) fibers only.
Question 5 of 5
Which of the following is a regulatory protein in the cytoplasm that helps the processes at the synapse?
Correct Answer: A
Rationale: Calmodulin binds calcium to regulate synaptic processes (e.g., neurotransmitter release). Protein kinase phosphorylates, ligands bind receptors, and 'gap protein' is vague (likely gap junctions, unrelated).