It has been said that a neuron is an individual cell whilst a group of neurons create a nerve. Neurons contain nerve impulses …show more content…
According to (Patrick 2013) Cholinergic receptors also called auto receptors exist at the terminus of the presynaptic neuron. These receptors serve to provide a way of local control over nerve transmission. Once acetylcholine is released from the neuron, a part of it migrates its way to these auto receptors and switch them on. It is then said to have effect of inhibiting more release of acetylcholine. The presynaptic has receptors for noradrenaline, this functions as an additional control system for acetylcholine release. (Patrick 2013) states ‘branches from the sympathetic nervous system follow through to the cholinergic synapses and once the sympathetic nervous system is active, noradrenaline gets released and then binds to these receptors’. The effect is said to inhibit the release of acetylcholine. This incidentally, enhances noradrenaline activity at organs which are aimed at by decreasing cholinergic activity.