Structure and functions of cells of the nervous system

3 important questions on Structure and functions of cells of the nervous system

What is a second messenger?

Chemical produced when G protein activates an enzyme; carries a signal and puts other events in motion.

What is enzymatic deactivation?

The destruction of neurotransmitter by enzyme.

How are postsynaptic potentials kept brief?

By reuptake and enzymatic deactivation.

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