Chapter 28, Problem 28.63AP

Interpretation Introduction

Interpretation:

The two methods for removing the neurotransmitter after completing its job have to be explained.

Concept Introduction:

Neurotransmitters: Neurotransmitters are chemicals that transmit messages from the nervous system to the target cell. They are the chemical messagers where the electrical signal from the nervous system is travelled from one neuron to another to reach the target cell.

Presynaptic neurons produces neurotransmitters which are stored in the small pockets of presynaptic neurons called vesicles from where the neurotransmitters are released according to the need. After neurotransmitter completes its job, it is immediately removed from the cleft of synapse for preparing the presynaptic neurons to get another impulse.

There are two ways to remove neurotransmitter from synaptic cleft. It can be removed either by inactivating neurotransmitter by a chemical change which is catalyzed by an enzyme present in the synaptic cleft or by making neurotransmitters go back to the presynaptic neurons where it is stored till the next requirement.