ATI RN
Nervous System Multiple Choice Questions and Answers Questions
Question 1 of 5
The autonomic nervous system is responsible for which function(s)?
Correct Answer: A
Rationale: The ANS controls involuntary motor functions (e.g., heart rate, digestion). Sensory functions are handled by the somatic nervous system or visceral afferents, not primarily ANS.
Question 2 of 5
Cholinergic-blocking agents have as an unwanted side effect:
Correct Answer: D
Rationale: Cholinergic blockers (e.g., atropine) inhibit parasympathetic effects, causing dry mouth (reduced salivation). Other options are parasympathetic effects.
Question 3 of 5
Taste sensation is mediated by cranial nerves:
Correct Answer: C
Rationale: Facial (VII) mediates anterior tongue taste, glossopharyngeal (IX) posterior tongue. Trigeminal is sensory, trochlear/abducens are eye-related.
Question 4 of 5
Which kind of neuroglial cells are not found in the CNS?
Correct Answer: D
Rationale: Satellite cells are found in the peripheral nervous system (PNS), supporting neuron cell bodies in ganglia. All others (astrocytes, ependymal cells, microglia, oligodendrocytes) are CNS glial cells.
Question 5 of 5
In a resting neuron, the:
Correct Answer: B
Rationale: At rest (~-70 mV), the neuron’s outside is positively charged (more Na⁺) and inside negatively charged (more K⁺), creating a potential difference. The membrane has selective permeability.