ATI LPN
Medical Surgical Nursing Neurological Disorders Quizlet Questions
Question 1 of 5
Impulse conduction is fastest in neurons that are:
Correct Answer: A
Rationale: Myelinated neurons conduct impulses faster via saltatory conduction, where the signal jumps between nodes of Ranvier.
Question 2 of 5
The cerebral aqueduct is a canal connecting 3rd and 4th ventricles. What brain structure would likely contain it?
Correct Answer: D
Rationale: The cerebral aqueduct, linking the 3rd and 4th ventricles, passes through the midbrain (mesencephalon).
Question 3 of 5
If you inject radioactive proline into an eye what cells would you observe labeled in the contralateral LGN?
Correct Answer: C
Rationale: Proline labels retinal ganglion cell axons, which project to contralateral LGN layers 1, 4, and 6 (ipsilateral: 2, 3, 5) in primates.
Question 4 of 5
The first area in the auditory pathway to receive input from both ears is
Correct Answer: B
Rationale: The superior olive integrates binaural input for sound localization, receiving from both cochlear nuclei.
Question 5 of 5
The nucleus in the thalamus that receives somatosensory information about the face is the
Correct Answer: A
Rationale: The ventral posteromedial nucleus (VPM) processes facial somatosensory input, unlike VPL (body), LGN (vision), or MGN (audition).