Neurotransmission

Question 1

what are the 4 steps of neurotransmission?

Answer 1

1. the synthesis of a transmitter substance
2. the storage and release of the transmitter
3. binding of the transmitter to receptors on the post synaptic membrane
4. removal of the transmitter from the synaptic cleft

Question 2

how do nerve cells communicate?

Answer 2

electrochemical signals which cross the point at which two neurons meet called the ‘synapse’

Question 3

what causes an excitatory or inhibitory action?

Answer 3

neurotransmitters are released from the axonal terminal of one neuronal, the “presynaptic cell”, the neurotransmitter then crosses the synapse and binds to the receptors of the post synaptic cells and causes ‘excitatory/inhibitory’ action