On postsynaptic membrane, the new potential developed is |
|||
a) |
Always inhibitory |
b) |
Always excitatory |
c) |
May be excitatory or inhibitory |
d) |
Neither excitatory nor inhibitory |
On postsynaptic membrane, the new potential developed is |
|||
a) |
Always inhibitory |
b) |
Always excitatory |
c) |
May be excitatory or inhibitory |
d) |
Neither excitatory nor inhibitory |
(c)
The kind of action potential to be developed on the membrane of postsynaptic neuron depends upon the action of neurotransmitter. It is summarized as follows
(i) Neurotransmitter Excitatory Receptor Open channels of ions or both for and Depolarising of plasma membrane of postsynaptic Neuron Action potential
(ii) Neurotransmitter Inhibitory Receptor Opens or channels Hyperpolarisation of plasma membrane of postsynaptic neuron No action potential so, the new potential developed may be either excitatory or inhibitory