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Being broken down by enzymes and being reabsorbed by the presynaptic neuron.
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∙ 10y ago
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What is contained inside a synaptic terminal?
There is isotonic fluid inside the synapse. Neurotransmitter is released there inside the synapse.
What is the name of the tiny gap the neurotransmitter has to diffuse across to reach the membrane of the postsynaptic neuron?
the synapse
What function does synaptic vesicles containing neurotransmitter?
To send a signal to the next neuron ... across the synapse.
What functions as a neurotransmitter?
When impulses reach a synapse they trigger the release of chemicals called neurotransmitters. Molecules of the neurotransmitter cross the synapse and stimulate the receiving neuron to fire an impulse of its own as wave like movements of ions. They may also actively inhibit a receiving neuron from firing.
What is the small space between one neuron and the next is called?
A synapse, chemical signals called neurotransmitters cross these gaps, carrying on the signal.
What type of synapse uses neurotransmitter?
Chemical Synapse
What is the role of neurotransmitter at a chemical synapse?
exocytosis
Does a neurotransmitter carry ATP across a synapse?
no
What is contained inside a synaptic terminal?
There is isotonic fluid inside the synapse. Neurotransmitter is released there inside the synapse.
What is the chemical secreted into the gap between neurons at the synapse?
The answer is NEUROTRANSMITTER.
What do you call the chemical released by the axon that travels across a synapse and binds on the dendrites of the other neurons or body cells?
neurotransmitter neurotransmitter neurotransmitter
Drugs act at the synapse by?
replacing, decreasing, or enhancing the amount of neurotransmitter
What is the relationship between a synapse and neurotransmitter?
Chemical synapses are specialized junctions through which neurons signal to each other and to non-neuronal cells such as those in muscles or glands. At a chemical synapse, one neuron releases a neurotransmitter into a small space (the synapse) that is adjacent to another neuron.
How is transmission across the synapse halted?
There are three ways to end chemical signaling across a synapse. In some cases, the neurotransmitter molecules simply diffuse away from the synapse. In others, enzymes located in the synaptic gap deactivate the neurotransmitters. Finally, neurotransmitters are taken up by the releasing neuron in a process known as reuptake.
What would happen if the re-uptake of a stimulatory neurotransmitter was blocked?
The action of the excitatory neurotransmitter will increase, since its concentration in the synapse will rise.
Which of the following helps carry nerve impulses across the synapse?
neurotransmitter carries the nerve impulses from neuron to neuron across a synapse
How long does neurotransmitter stay in the synapse What is the rate of removal of neurotransmitter Is it an exponential decay?
Neurotransmitter stay for few milliseconds only in the synapse. The rate is difficult to define, but then the decay is most probably exponential decay. The acetylcholine is destroyed by the enzyme acetylcholinestarage. The noradrenaline is taken up back by the neuron, which has secreted it.
