- a region where nerve impulses are transmitted and received, encompassing the axon terminal of a neuron that releases neurotransmitters in response to an impulse, an extremely small gap across which the neurotransmitters travel, and the adjacent membrane of an axon, dendrite, or muscle or gland cell with the appropriate receptor molecules for picking up the neurotransmitters.
- Cell Biology, Physiology. to form a synapse or a synapsis.
Origin of synapse
Origin of synapsis
Examples from the Web for synapses
And the toxin, which sits in the synapses between neurons, can take weeks to wash out.The Deadliest Botox Has Arrived
October 18, 2013
That three-pound lump of gray matter contains 100 billion neurons and 100 trillion synapses, or connections.How Computers Just Got More Human
September 21, 2011
Just pure pain, applied directly to the synapses of his brain.Evil Out of Onzar
The point where the greatest change seems to take place is at the synapses, but what this modification is, no one knows.How to Teach
George Drayton Strayer and Naomi Norsworthy
Thus may be produced growth of axons in certain directions, and synapses of this cell with that.
If the same stimulus be often repeated, the synapses between groups of cells may become permanent.
Many association tracts and synapses are laid down in the central nervous system when the child is born.
- the point at which a nerve impulse is relayed from the terminal portion of an axon to the dendrites of an adjacent neuron
- cytology the association in pairs of homologous chromosomes at the start of meiosis
- another word for synapse
Word Origin and History for synapses
"junction between two nerve cells," 1899, from Greek synapsis "conjunction," from synaptein "to clasp," from syn- "together" (see syn-) + haptein "to fasten." Related to apse. Introduced by English physiologist Sir Michael Foster (1836-1907) at the suggestion of English classical scholar Arthur Woollgar Verral (1851-1912).
plural synapses, 1895 in biology, Modern Latin, from Greek synapsis "connection, junction" (see synapse).
- The junction across which a nerve impulse passes from an axon terminal to a neuron, a muscle cell, or a gland cell.
- The side-by-side association of homologous paternal and maternal chromosomes during early meiotic prophase.
- The small junction across which a nerve impulse passes from one nerve cell to another nerve cell, a muscle cell, or a gland cell. The synapse consists of the synaptic terminal, or presynaptic ending, of a sending neuron, a postsynaptic ending of the receiving cell that contains receptor sites, and the space between them (the synaptic cleft). The synaptic terminal contains neurotransmitters and cell organelles including mitochondria. An electrical impulse in the sending neuron triggers the migration of vesicles containing neurotransmitters toward the membrane of the synaptic terminal. The vesicle membrane fuses with the presynaptic membrane, and the neurotransmitters are released into the synaptic cleft and bind to receptors of the connecting cell where they excite or inhibit electrical impulses. See also neurotransmitter.