ATI LPN
Medical Surgical Nursing Neurological Disorders Questions
Question 1 of 5
The midbrain contains the substantia nigra, which is crucial for:
Correct Answer: D
Rationale: The substantia nigra in the midbrain produces dopamine for motor control (e.g., Parkinson’s). [Level: Knowledge]
Question 2 of 5
Decussation refers to the crossing over of nerve fibers from one side of the nervous system to the other. Which structure in the brainstem is known for the prominent decussation of motor fibers?
Correct Answer: A
Rationale: The medulla oblongata is where corticospinal tracts decussate (pyramidal decussation). [Level: Knowledge]
Question 3 of 5
Ventral roots of spinal nerves consist of:
Correct Answer: B
Rationale: Ventral roots carry motor (efferent) fibers out of the CNS. [Level: Knowledge]
Question 4 of 5
Which cranial nerve is responsible for eye movement and pupil constriction?
Correct Answer: B
Rationale: The oculomotor nerve (CN III) controls eye movement and pupil constriction. [Level: Knowledge]
Question 5 of 5
The primary symptom of hydrocephalus is often:
Correct Answer: B
Rationale: Headache and vomiting occur due to increased intracranial pressure from CSF buildup. [Level: Knowledge]