ATI LPN
Medical Surgical Nursing Neurological Disorders Questions
Question 1 of 5
Astrocytes are essential for:
Correct Answer: D
Rationale: Astrocytes maintain the blood-brain barrier, protecting the CNS. [Level: Knowledge]
Question 2 of 5
The premotor cortex is involved in the planning and coordination of voluntary movements and is located anterior to the:
Correct Answer: A
Rationale: The premotor cortex, anterior to the primary motor cortex, plans voluntary movements. [Level: Knowledge]
Question 3 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 4 of 5
The ventral (anterior) horns of the spinal cord primarily contain:
Correct Answer: B
Rationale: Ventral horns contain motor nuclei, sending efferent signals. [Level: Knowledge]
Question 5 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]