From Wikipedia, the free encyclopedia
In a synapse, a bouton (or synaptic button, or presynaptic button) is a knoblike protuberance at the pre-synaptic nerve terminal where two axons connect with each other.
The bouton is where the neurotransmitter is stored and released from in order to cross the synapse.
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| Nervous tissue - edit |
Neurons (gray matter): soma, axon (axon hillock, axoplasm, axolemma, neurofibril/neurofilament), dendrite (Nissl body, dendritic spine)
types (bipolar, pseudounipolar, multipolar, pyramidal, Purkinje, Renshaw, granule)
Synapses: neuropil, boutons, synaptic vesicle, neuromuscular junction, electrical synapse
Sensory receptors: Free nerve ending, Meissner's corpuscle, Merkel nerve ending, Muscle spindle, Pacinian corpuscle, Ruffini ending, Olfactory receptor neuron, Photoreceptor, Hair cell, Taste bud
Glial cells: astrocyte, ependymal cells, microglia, radial glia
Myelination (white matter): Schwann cell, oligodendrocyte, nodes of Ranvier, internode, Schmidt-Lanterman incisures, neurolemma
closely related Connective tissue: epineurium, perineurium, endoneurium, nerve fascicle, meninges
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