Search on: SYNAPSES 
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Descriptor English:   Synapses 
Descriptor Spanish:   Sinapsis 
Descriptor Portuguese:   Sinapses 
Synonyms English:   Synapse  
Tree Number:   A08.850
A11.284.149.165.420.780
Definition English:   Specialized junctions at which a neuron communicates with a target cell. At classical synapses, a neuron's presynaptic terminal releases a chemical transmitter stored in synaptic vesicles which diffuses across a narrow synaptic cleft and activates receptors on the postsynaptic membrane of the target cell. The target may be a dendrite, cell body, or axon of another neuron, or a specialized region of a muscle or secretory cell. Neurons may also communicate via direct electrical coupling with ELECTRICAL SYNAPSES. Several other non-synaptic chemical or electric signal transmitting processes occur via extracellular mediated interactions. 
Indexing Annotation English:   note specifics; IMMUNOLOGICAL SYNAPSES is also available; / physiol: consider also SYNAPTIC TRANSMISSION; do not confuse with SYNAPSIS see CHROMOSOME PAIRING
See Related English:   Gap Junctions
Synaptic Transmission
Synaptosomes
 
Allowable Qualifiers English:  
CH chemistry CL classification
DE drug effects EN enzymology
GE genetics IM immunology
ME metabolism MI microbiology
PS parasitology PA pathology
PH physiology RE radiation effects
UL ultrastructure VI virology
Record Number:   13949 
Unique Identifier:   D013569 

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