axon terminal

axon terminal

The ending of an axon which releases neurotransmitters onto a synaptic space near another neurones, muscle cell or gland.
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When an action potential travels along a nerve and arrives at the axon terminal, it triggers the secretion of a neurotransmitter that allows the passage of a signal from one neuron to its neighbour via the synaptic cleft.
At the same time, the neurotransmitter binds to receptors on the membrane of the axon terminal.
Following receptor activation, the neurotransmitter diffuses away from its receptors and is taken back up into the presynaptic axon terminal for recycling.
6) Increased inhibitory feedback on the axon terminal
When an action potential reaches the axon terminal and stimulates a rise in the concentration of calcium, this ion stimulates the vesicle to fuse with the cell membrane and release the neurotransmitter into the small synaptic gap between cells.
Thus, at synapses using ligand-gated channels, the time between action potential depolarization (1) of the axon terminal and the beginning of the current flowing through the postsynaptic LGIC is a matter of 1 to 2 milliseconds.
Thus, they participate in both "anterograde" signaling from the axon terminal of the presynaptic neuron to the postsynaptic elements of a downstream neuron, as well as "retrograde" signaling, in which release from dendritic elements of the postsynaptic neuron activates receptors on the presynaptic axon terminals.
The cell numbers remained elevated at 30 days PD suggesting that CNTF may play a role in the sprouting process within the axon terminal field.
Reflecting the partitioning of visual information into parallel channels, the retinal layer in which bipolar cell axon terminals meet their synaptic partners, is highly organized: This so-called inner plexiform layer effectively serves as the retina s switch board : The input is provided by the different bipolar cell channels , while the output is carried by an even larger number of channels, represented by ganglion cells that form the optic nerve.
Calcium influx studies on the axon terminals of the NL also confirmed the expression and function of TRPC3.
Neurons communicate with each other by chemicals called neurotransmitters that are transported from the cell body to the axon terminals where they are released.
Under normal circumstances, dopegal is formed in the axon terminals away from the cell's genetic instructions that contain a program for cell suicide, so it can not trigger the suicide message.