1. Give the name of a neurotransmitter that usually results in excitation when i

Question

1. Give the name of a neurotransmitter that usually results in excitation when it binds with its receptors, one that usually results in inhibition when it binds with its receptors, and one that has both effects depending on which receptor it binds with.   excitation: _________ inhibition: ________ both: _______

2. Some inhibitory postsynaptic potentials (IPSPs) are the result of Cl- entering the cell through a chloride channel. Other IPSPs are caused by the opening of K+ channels. How could movement of the potassium ion result in hyperpolarization of the postsynaptic cell?

3. A certain type of poison is a nicotinic receptor blocker. What affect would this poison have on the muscle action potential?

Explanation / Answer

1) Neurotransmitters are close to the vesicles that are stored in the vesicles near the synaptic membrane.

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