ATI RN
Nervous System Questions Questions
Question 1 of 5
The limbic system is involved in
Correct Answer: D
Rationale: The limbic system (e.g., amygdala, hippocampus) governs emotions, memory, and learning, making 'all of the above' correct.
Question 2 of 5
There are cranial nerves and spinal nerves.
Correct Answer: B
Rationale: There are 12 pairs of cranial nerves and 31 pairs of spinal nerves (8 cervical, 12 thoracic, 5 lumbar, 5 sacral, 1 coccygeal).
Question 3 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 4 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 5 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.