ATI RN
Nervous System Multiple Choice Questions and Answers Questions
Question 1 of 5
One of the two main subdivisions of the autonomic nervous system; prepares the body for intense physical activity.
Correct Answer: A
Rationale: The sympathetic nervous system prepares the body for fight-or-flight (intense activity). Parasympathetic conserves energy, ANS is broader, and enteric controls digestion.
Question 2 of 5
The type of circuit in which branches of postsynaptic neurons synapse with earlier neurons in the path.
Correct Answer: C
Rationale: A reverberating circuit involves postsynaptic neurons feeding back to earlier neurons, creating sustained activity. Convergent and divergent describe synapse patterns, and parallel is not standard.
Question 3 of 5
Nerves that directly innervate voluntary muscles are part of the
Correct Answer: B
Rationale: The somatic nervous system innervates voluntary skeletal muscles. Autonomic controls involuntary muscles/glands, CNS is brain/spinal cord, and enteric governs digestion.
Question 4 of 5
A change in the chemicals that enter the nose would be received by
Correct Answer: B
Rationale: Sensory receptors (e.g., olfactory receptors in the nose) detect chemical changes (odors). Enteric plexuses control digestion, cranial nerves transmit signals, and neuroglia support.
Question 5 of 5
Which types of CNS neuroglia are the most similar in appearance?
Correct Answer: C
Rationale: Astrocytes (star-shaped) and oligodendrocytes (fewer processes) are similar in having branching processes, unlike microglia (small, mobile) or ependymal cells (ciliated, lining ventricles).