The junction between two neurons is called a Synapse, and the gap is called the synaptic cleft or also called the synaptic gap. This discovery was made by Sir Charles Scott Sherrington. An adult human brain is estimated to contain from 100 to 500 trillion synapses. Sir Charles was an English neurophysiologist, histologist, bacteriologist, and a pathologist. The Nobel Prize in Physiology or Medicine in 1932 was awarded jointly to Sir Charles and Edgar Douglas Adrian, an English electrophysiologist, "for their discoveries regarding the functions of neurons."
