Excitatory synapse CNS, TEM

Numéro d’image : 12297661
Excitatory synapse CNS, TEM
Excitatory synapse from the human central nervous system, coloured transmission electron micrograph (TEM). Note the synaptic zone, synaptic vesicles and single dark dense core vesicle. Chemical synapses are specialized junctions through which nerve cells signal one another or other non-neuronal cells such as muscles. At a typical synapse an axon and a dendrite flank each other across a slender gap (synaptic cleft). Signalling molecules, known as neurotransmitters, are contained in tiny vesicles of the axon (light yellow). Neurotransmitters pass rapidly from axon to dendrite triggering an electrical impulse. Neurons are (also known as nerve cells) are cells of the nervous system that are specialized to carry messages through an electrochemical process. Magnification: x3, 600 when shortest axis printed at 25 millimetres.
Licence : Droits gérés
Crédit: Science Photo Library / DENNIS KUNKEL MICROSCOPY
Taille de l’image : 2623 px × 3332 px
Model Release : Non requis
Property Release : Non requis
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