ATI LPN
Neurological Questions Questions
Question 1 of 5
What is the function of the myelin sheath in nerve fibers?
Correct Answer: C
Rationale: Myelin insulates axons, speeding impulse conduction via saltatory conduction. A/B are opposite. [Level: Knowledge]
Question 2 of 5
The connective tissue layer that surrounds bundles of nerve fibers within a nerve is known as the:
Correct Answer: B
Rationale: The perineurium surrounds fascicles within a nerve, organizing fibers. [Level: Knowledge]
Question 3 of 5
Satellite cells and Schwann cells are associated with the:
Correct Answer: B
Rationale: Satellite cells and Schwann cells function in the PNS, supporting neurons. [Level: Knowledge]
Question 4 of 5
The layer of the meninges that is most vulnerable to infection and inflammation is the:
Correct Answer: C
Rationale: The arachnoid mater, with its CSF proximity, is vulnerable to meningitis. [Level: Knowledge]
Question 5 of 5
Cerebral tracts that carry information from the cerebrum to the lower parts of the central nervous system are known as:
Correct Answer: B
Rationale: Projection tracts carry signals from the cerebrum to lower CNS areas (e.g., spinal cord). Others connect within or between hemispheres. [Level: Knowledge]