ATI LPN
Medical Surgical Nursing Neurological Disorders Questions
Question 1 of 5
The dura mater extends to form a strong, protective sheath around the spinal cord known as the:
Correct Answer: C
Rationale: Correction: The dura forms the spinal dural sheath, but filum terminale is pia mater; intent unclear, likely C. [Level: Knowledge]
Question 2 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 3 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 4 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 5 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]