ATI RN
Autonomic Nervous System NCLEX Questions Questions
Question 1 of 5
The speed of a nerve impulse is independent of the:
Correct Answer: D
Rationale: Impulse speed depends on fiber diameter, myelination (including Schwann cells in PNS), and physiological condition (e.g., ion channels). Length affects total time, not speed (m/s).
Question 2 of 5
The gray matter of the brain consists mainly of neuron cell:
Correct Answer: D
Rationale: Gray matter comprises neuron cell bodies, dendrites, and unmyelinated axons. White matter is myelinated axons.
Question 3 of 5
Clusters of neuron cell bodies found in the CNS are termed:
Correct Answer: D
Rationale: In the CNS, clusters of neuron cell bodies are called nuclei. Ganglia are PNS equivalents.
Question 4 of 5
A client had a motor vehicle accident and is presenting to the emergency department with a head injury. The client is reporting dizziness and is noted by the nurse to have an unsteady gait. Which area of the brain would the nurse consider as likely to be affected when planning further neurological assessments?
Correct Answer: D
Rationale: The cerebellum controls balance and coordination; damage causes dizziness and unsteady gait (ataxia). Diencephalon regulates homeostasis, brainstem vital functions, temporal lobe memory/hearing.
Question 5 of 5
An elderly client has suffered a brainstem hemorrhage. The nurse is aware that the brainstem controls which of the following functions?
Correct Answer: C
Rationale: The brainstem (e.g., medulla) regulates vital functions like blood pressure. Endocrine function is hypothalamic, sleep involves multiple areas, language is cortical.