Graded Potentials Flashcards
(5 cards)
1
Q
Where do graded potentials occur?
A
In the dendrites and cell body of a neuron
2
Q
What causes graded potentials?
A
Ligand gated or mechanically gated ion channels opening
3
Q
What is an IPSP (inhibitory postsynaptic potential)?
A
A hyperpolarization where K+ exits or CI- enters, making the inside more negative (further from threshold)
4
Q
What is summation?
A
The process of adding graded potentials together
5
Q
What is the difference between temporal and spatial summation?
A
- temporal- repeated signals from one input
- Spacial- multiple inputs and ones
