a neurotransmitter released by the transmitting dendron at autononmous synapses and at neuromuscular junctions. It is a quaternary amine with an obligatory negative counterion. The nominal formula for the hydroxide form is C7H17NO3. Structural formula (CH3)3N(+)CH2CH2.O.CO.CH3.OH(-).
a chemical agent that is released by nerve endings; its effects include cardiac inhibition (a slowing down), increase in blood vessel diameter, and other effects.
A chemical neurotransmitter that is released from the ends of certain types of nerve fibre when they are stimulated. It transmits a signal to an adjacent nerve or muscle cell by binding to receptors on the target cell surface.