At the terminal end of the axon is a branched structure with ends called synaptic knobs. From this structure chemical signals can be sent to neighboring neurons. Transmission of nerve impulse along the axon
When an action potential reaches the axon terminal of a motor neuron, vesicles carrying neurotransmitters (mostly acetylcholine) are exocytosed and the contents are released into the neuromuscular junction.These neurotransmitters bind to receptors on the postsynaptic membrane and lead to its depolarization.he small depolarization associated with the release of acetylcholine from one synaptic vesicle is called a miniature end-plate potential (MEPP). MEPPs are additive and lead to a greater depolarization of the postsynaptic membrane and become end plate potentials (EPPs).
The charged particles located inside and outside of the neuron are called The state of the neuron when not firing a neural impulse is known as the resting potential refers to the fact that a neuron either fires completely or does not fire at all. Are sack-like structures found inside the synaptic knob containing chemicals. Are chemicals found in the synaptic vesicles which, when released, have an effect on the next cell.