There are two types of removal: Re-uptake – the neurotransmitter is reabsorbed back into the presynaptic neuron and restored inside a vesicle ready to be used again. For example, noradrenaline.

Heart Rate Increase in rate of contraction of cardiac muscle - cardiac output increases Decrease in rate of contraction of cardiac muscle - cardiac output decreases Breathing Rate Smooth muscle of ...

This neurotransmitter ... "Neuroanatomy textbooks, for example, describe the sympathetic nervous system as working by releasing noradrenaline at the nerve terminals. In the study, however ...