AP 1 (11-8)

Card Set Information

Author:
mc166589
ID:
119589
Filename:
AP 1 (11-8)
Updated:
2011-11-29 13:25:29
Tags:
neurons
Folders:

Description:
AP 1 chapter 11.
Show Answers:

Home > Flashcards > Print Preview

The flashcards below were created by user mc166589 on FreezingBlue Flashcards. What would you like to do?


  1. What are the two postsynaptic potentials?
    • Excitatory postsynaptic potential
    • Inhibitory postsynaptic potential
  2. Describe the effect that an excitatory postsynaptic potential would have on a neuron.
    • Graded depolarization is caused by the neurotransmitter arrival.
    • Shifts transmembrane potential closer to threshold
  3. Describe the effect that an inhibitory postsynaptic potential would have on a neuron.
    • Graded hyperpolarization is caused by the neurotransmitter arrival.
    • More inhibition, larger-than-usual stimulus needed to reach threshold.
  4. What determines if a nerve impulse will be conducted?
    The net effect at the axon hillock.
  5. The threshold is lowest at what part of the cell body?
    Axon hillock
  6. What are the two types of summation?
    • Temporal summation
    • Spatial summation
  7. Describe temporal summation.
    A single synapse stimulated repeatedly.
  8. Describe temporal summation.
    Involves multiple synapses activated simultaneously.
  9. In spatial summation, the degree of depolarization dependent on what two factors?
    • Number of synapses are active at a particular moment.
    • Distance from initial segment.

What would you like to do?

Home > Flashcards > Print Preview