ATI RN
Questions About Nervous System Questions
Question 1 of 5
Dendrites carry nerve impulses:
Correct Answer: A
Rationale: Dendrites receive signals and conduct them toward the neuron’s cell body. Axons carry impulses away, synapses transfer between neurons.
Question 2 of 5
Among neurotransmitters are:
Correct Answer: C
Rationale: Acetylcholine and norepinephrine are well-known neurotransmitters. Options A and B are DNA/RNA bases, not transmitters.
Question 3 of 5
The nurse is assessing the sensory function of the cranial nerves. The nurse recalls that which nerve has only sensory function?
Correct Answer: C
Rationale: CN VIII (vestibulocochlear) is purely sensory (hearing, balance). Facial, vagus, and trigeminal are mixed nerves with sensory and motor functions.
Question 4 of 5
A client is scheduled for a lumbar puncture to obtain samples of cerebrospinal fluid (CSF). The nurse should explain that CSF is formed:
Correct Answer: A
Rationale: CSF is produced by the choroid plexus in the brain’s ventricles. Dura mater is a membrane, spinal canal contains CSF, subarachnoid space stores it.
Question 5 of 5
The three initial developmental regions of the brain are the:
Correct Answer: B
Rationale: The three primary brain vesicles during early development are the prosencephalon (forebrain), mesencephalon (midbrain), and rhombencephalon (hindbrain). Telencephalon and diencephalon are subdivisions of the prosencephalon, while metencephalon and myelencephalon are subdivisions of the rhombencephalon.