presynaptic membrane

presynaptic membrane
the area of plasma membrane of a presynaptic axon that is within the synapse and has sites (active zones) especially adapted for the release of neurotransmitters.

Medical dictionary. 2011.

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  • presynaptic — Pertaining to the area on the proximal side of a synaptic cleft. * * * pre·syn·ap·tic sə nap tik adj relating to, occurring in, or being part of a nerve cell by which a wave of excitation is conveyed to a synapse <presynaptic terminals>… …   Medical dictionary

  • presynaptic — adjective Date: 1937 of, occurring in, or being a neuron by which a nerve impulse is conveyed to a synapse < a presynaptic membrane > < a presynaptic neuron > • presynaptically adverb …   New Collegiate Dictionary

  • membrane — 1. A thin sheet or layer of pliable tissue, serving as a covering or envelope of a part, as the lining of a cavity, as a partition or septum, or to connect two structures. SYN: membrana [TA]. 2. SYN: biomembrane. [L. membrana, a skin or m …   Medical dictionary

  • Membrane potential — Differences in concentration of ions on opposite sides of a cellular membrane lead to a voltage called the membrane potential. Many ions have a concentration gradient across the membrane, including potassium (K+), which is at a high inside and a… …   Wikipedia

  • Vesicle-associated membrane protein 8 — (endobrevin), also known as VAMP8, is a human gene.cite web | title = Entrez Gene: VAMP8 vesicle associated membrane protein 8 (endobrevin)| url = http://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene Cmd=ShowDetailView TermToSearch=8673| accessdate …   Wikipedia

  • Biological membrane — This article is about various membranes in living things. For the membranes surrounding cells, see cell membrane. Cross section view of the structures that can be formed by phospholipids in aqueous solutions A biological membrane or biomembrane… …   Wikipedia

  • synaptic membrane — the part of the plasma membrane of a neuron that is within a synapse; see postsynaptic m. and presynaptic m …   Medical dictionary

  • nervous system — Anat., Zool. 1. the system of nerves and nerve centers in an animal or human, including the brain, spinal cord, nerves, and ganglia. 2. a particular part of this system. Cf. autonomic nervous system, central nervous system, peripheral nervous… …   Universalium

  • 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

  • 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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