Page 1 Myelin Sheath

Question 1

What is a myelin sheath formed by

Answer 1

specialist cells called Schwann Cells

Question 2

What does a Myelin Sheath permit, and how?

Answer 2

Saltatory Conduction- Gaps (nodes of Ranvier) in myelin sheath speed up conduction of neural/electrical impulses by allowing the impulse to “jump” from one node to the next

Question 3

3 basic ffunctions of the Myelin Sheath

Answer 3

Acting as an insulator
-Protecting the axon against damage
-Speeding up movement of nerve impulses along the axon