ATI RN
Questions About Nervous System Questions
Question 1 of 5
The neuroglial cells that have functions similar to white blood cells are:
Correct Answer: C
Rationale: Microglia act as the CNS immune cells, phagocytosing debris and pathogens, similar to white blood cells. Oligodendrocytes myelinate, astrocytes support, ependymal cells line ventricles, lymphocytes are immune system cells.
Question 2 of 5
Coordination via the nervous system differs from that via the endocrine system in that the former:
Correct Answer: A
Rationale: Nervous system responses are rapid, precise, and localized (e.g., reflexes), unlike the slower, diffuse, longer-lasting endocrine system (hormones).
Question 3 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 4 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 5 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.