How Nerves Work 2 Flashcards
1
Q
How do large axons allow for faster transmission?
A
Reduced resistance
2
Q
Why does this increase transmission speed?
A
It means Na channels can be placed further apart and still elicit a response, since opening Na channels is the most time consuming part this reduced transmission time
3
Q
How does myelination speed up transmission time?
A
- Reduces Na leakage
- Less Na channels spaced further apart
4
Q
In a myelinated cell where are the Na channels found?
A
Nodes of ranvier
5
Q
What type of transmission is this an example of?
A
Saltatory
