Lecture 11 - From Action Potentials to Synapses and Circuits Flashcards
1
Q
How are action potentials generated in the axon?
A
By the opening then closing of the VGNC and VGKC
2
Q
Conduction speed
A
The time it takes an action potential to travel a given distance along an axon (usually measured in m/s)
3
Q
What is the function of myelin?
A
It provides a form of electrical insulation, enhancing the spread of potentials and producing saltatory propagation
4
Q
What does a synapse do?
A
It converts an action potential to a chemical signal and then to a graded potential
5
Q
What are the parts of a synapse?
A
- Presynaptic specialization
- Synaptic cleft
- Postsynaptic specialization
6
Q
What is the function of an axon terminal?
A
Release neurotransmitter from synaptic vesicles in response to an action potential
