What is the primary function of neurotransmitters?

The primary function of neurotransmitters is to transmit signals across synapses between neurons. Neurotransmitters are chemical messengers that are released by the presynaptic neuron when an action potential reaches the synaptic terminal. They then bind to specific receptors on the postsynaptic neuron, leading to the propagation of electrical signals. This process is essential for communication within the nervous system, influencing a wide range of functions including mood, thought, movement, and bodily functions. This signaling is crucial for the proper functioning of neural circuits and the entire nervous system. Understanding this role of neurotransmitters is fundamental to grasping how neural communication affects both physiology and behavior.