Difficulty: Medium
Average Score: 83%
Entry Exam
Passage / Scenario
What is the function of the myelin sheath for a nerve cell?
Correct answer
B
Rationale
The myelin sheath functions as an insulator for nerve cells, enabling the rapid transmission of electrical impulses along the nerve fiber. This insulation is essential for maintaining the speed and efficiency of nerve signal conduction. Sensory perception involves detecting sensory stimuli, nutrition involves the supply of nutrients, and regeneration is the process of regrowth or repair, which are distinct functions from what the myelin sheath provides.