What is the definition of a synapse?

A synapse is defined as the gap between neurons, which is crucial for the transmission of signals within the nervous system. This small space allows for communication between neurons, facilitating the transfer of electrical or chemical signals. When a nerve impulse reaches the end of a neuron, it triggers the release of neurotransmitters that cross the synaptic gap to bind with receptors on the adjacent neuron, thus continuing the transmission of information. Understanding this process is fundamental for studying how the nervous system operates, including how reflexes, muscle movements, and various physiological responses are coordinated.