Graded Potentials Flashcards
0
Q
NT Release tends to be
A
graded
vs. fixed amounts typically released by AP
1
Q
Graded Potentials
A
- releasing NT from a Neuron does NOT always require an Action Potential
- can vary in amplitude in proportion to the input stimulus
- i.e. react a lot to strong stimulus, less to weak one
2
Q
Some neurons are very small, have short or even no Axon or Dendrites
A
- called LOCAL NEURONS, these cells communicate only with immediately adjacent cells
- in these Neurons, extremely rapid Electrical Conduction can cause NT release
- since cells are so small, Electrical Conduction need not travel far, does not completely degrade
3
Q
Some Receptor cells…
A
… react to outside stimulus (light, sound) w/graded potential
e.g. in Retina, Cochlea
