ATI RN
Nervous System Questions Questions
Question 1 of 5
The somatic nervous system does NOT serve
Correct Answer: A
Rationale: The somatic nervous system (SNS) controls voluntary skeletal muscles, skin, joints, and tendons. Internal organs are autonomic.
Question 2 of 5
Which of the following is a response of the parasympathetic nervous system?
Correct Answer: C
Rationale: The parasympathetic system (rest-and-digest) increases salivation. Heart rate increase, sweating, and bronchodilation are sympathetic.
Question 3 of 5
The tiny gap between two neurons where communication occurs is known as the:
Correct Answer: A
Rationale: The synapse is the gap where neurotransmitters enable neuron communication. Axon hillock initiates impulses, nodes boost conduction, and ganglia are cell body clusters.
Question 4 of 5
In a myelinated axon, where are the action potentials regenerated?
Correct Answer: A
Rationale: Action potentials regenerate at nodes of Ranvier in myelinated axons (saltatory conduction). Axon hillock starts them, terminals end them, myelin insulates.
Question 5 of 5
Schwann cells are responsible for the production of:
Correct Answer: B
Rationale: Schwann cells produce myelin in the PNS, speeding conduction. Neurotransmitters are neuronal, CSF is from choroid plexus, vesicles store neurotransmitters.