What is a synapse?

A synapse is defined as a junction between neurons, representing a crucial element in the nervous system's communication process. At a synapse, a neuron transmits signals to another neuron or to a target cell, such as a muscle or gland. This process involves the release of neurotransmitters—chemical messengers—from the presynaptic neuron into the synaptic cleft, the gap between the neurons. The neurotransmitters then bind to receptors on the postsynaptic neuron, allowing the signal to continue being transmitted.

Understanding synapses is vital when studying the nervous system, as they are essential for how communication between nerve cells occurs, influencing everything from muscle movement to complex behaviors and functions. This foundational knowledge is particularly important in fields such as massage therapy where an understanding of the body's nervous system can enhance treatment approaches and client care.