ATI LPN
Neurological Disorders in Medical Surgical Nursing Questions
Question 1 of 5
Action potentials normally travel along an axon
Correct Answer: B
Rationale: Action potentials propagate unidirectionally from the axon hillock (near the cell body) toward the axon terminals, away from the soma.
Question 2 of 5
The sophisticated behavior of mammals and birds is directly related to
Correct Answer: A
Rationale: The large cerebrum in mammals and birds supports complex behaviors like problem-solving and learning.
Question 3 of 5
What part of the brain allows us to recognize the emotional content of facial expressions and also helps lay down emotional memories?
Correct Answer: B
Rationale: The amygdala processes emotional recognition (e.g., facial expressions) and forms emotional memories.
Question 4 of 5
-------------contain only afferent fibers, long dendrites of sensory neurons.
Correct Answer: B
Rationale: Sensory nerves carry only afferent (sensory) fibers from receptors to the CNS, unlike cranial or mixed nerves (which may have both sensory and motor), or motor nerves (efferent).
Question 5 of 5
Immediately after an action potential is propagated, which one of the following ions rapidly diffuses out of the cell into the tissue fluid:
Correct Answer: D
Rationale: After depolarization (Na⁺ influx), repolarization occurs as K⁺ diffuses out, restoring the negative resting potential.