Question of the Day

Myelin sheaths are found
Surrounding the axons are the myelin sheaths, which are formed by a pair of layers of the plasma membrane of the myelin. Myelin sheath is discontinuous at the nodes of Ranvier, and increases the speed at which a nerve impluse can travel along an axon.
Click below to unlock all PCAT Materials: Video Crash Courses, Flashcards, Study Guides, PCAT Writing Prompts and PCAT Full Length Tests to help you succeed on the PCAT Exam!