ATI RN
Questions About Nervous System Questions
Question 1 of 5
A patient with a contusion over the parotid region has the following symptoms: paralysis of facial muscles, one eye can't be shut, corner of the mouth droops. Which cranial nerve is damaged?
Correct Answer: B
Rationale: Facial nerve (VII) damage near the parotid gland causes facial paralysis, inability to close the eye, and drooping mouth.
Question 2 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 3 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 4 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 5 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.