synaptic ribbon

synaptic ribbon
1. in the eye, a dense lamella surrounded by a halo of synaptic vesicles, found at a right angle to the apex of the synaptic ridge in the outer plexiform layer of the retina. 2. in the internal ear, a structure similar to that found in the eye, occurring in varying numbers in the cytoplasm of the hair cells.

Medical dictionary. 2011.

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  • Ribbon synapse — Latin synapsis fasciolaris Code TH H2.00.06.2.00024 Ribbon synapse is a type of synapse linking some particular neuronal cells, which have unique features, such as their morphology, mechanisms of multivesicular release and calcium channel positio …   Wikipedia

  • Synaptic vesicle — Neuron A (transmitting) to neuron B (receiving) 1. Mitochondria 2. synaptic vesicle with neurotransmitters 3. Autoreceptor 4. Synapse with neurotransmitter released (serotonin) 5. Postsynaptic receptors activated by neurotransmitter (induction of …   Wikipedia

  • ribbon synapse — Ultrastructurally distinct type of synapse found in a variety of sensory receptor cells such as retinal photoreceptor cells, cochlear hair cells and vestibular organ receptors, as well as in a non sensory neuron, the retinal bipolar cell. Unlike… …   Dictionary of molecular biology

  • CTBP2 — C terminal binding protein 2, also known as CTBP2, is a human gene.cite web | title = Entrez Gene: CTBP2 C terminal binding protein 2| url = http://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene Cmd=ShowDetailView TermToSearch=1488| accessdate = ] PBB …   Wikipedia

  • Pinealocyte — Pinealocytes are the main cells of the pineal gland. They produce and secrete melatonin. Pinealocytes have an organelle called the synaptic ribbon; this is considered to be a specific marker for pinealocytes. Some of the enzymes of the… …   Wikipedia

  • arciform density — a trough shaped body separating the synaptic ribbon and the membrane of the cone pedicle or of the rod spherule in the retina …   Medical dictionary

  • Chemical synapse — This article is about chemical synapses of the nervous system. For other uses, see Synapse (disambiguation). Illustration of the major elements in chemical synaptic transmission. An electrochemical wave called an action potential travels along… …   Wikipedia

  • Neuron — This article is about cells in the nervous system. For other uses, see Neuron (disambiguation). Brain cell redirects here. For other uses, see Glial cell. Neuron: Nerve Cell …   Wikipedia

  • Nervous system — Nerve redirects here. For other uses, see Nerve (disambiguation). This article is about the nervous system. For parts of the nervous system commonly called nerves, see Peripheral nerve. Nervous system The Human N …   Wikipedia

  • Action potential — In physiology, an action potential is a short lasting event in which the electrical membrane potential of a cell rapidly rises and falls, following a consistent trajectory. Action potentials occur in several types of animal cells, called… …   Wikipedia

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