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Which prevents accumulation of a neurotransmitter within the synapse?
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What prevents acetylcholine from accumulating in the neuromuscular junction?
The presence of an enzyme called acetylcholinesterasethat degrades acetylcholine is what prevents an accumulation of the neurotransmitter and sustained muscle contraction. Acetylcholinesterase is an enzyme that can be found within the neuromuscular junction. Thus, when a nerve impulse causes the release of acetylcholine at the neuromuscular junction, there is a critical time in which the neurotransmitter can bind to receptors on the muscle before it is degraded.
Does ionic current exist in chemical synapse?
not within the synaptic CLEFT (gap) itself, across which neurotransmitters diffuse, but yes, in the axon & axon terminal leading up to the synapse, and in the dendrite coming from the synapse.
What is the gradual accumulation overtime within a species?
evolution
What are the small sacs within the axon terminal called?
They are called as vesicles. They are constantly created. They contents the neurotransmitter. Neurotransmitter is required for transmission of the nerve impulse.
Does growth hormone cause fat accumulation within adipocytes?
No.
What is neurotransmitter tone?
Tone denotes the concentration of neurotransmitter within a given region of the nervous system. A lot of glutamate indicates a high excitatory, glutamatergic tone.
The axons of the cochlear nerve first synapse on the cochlear nucleus which is located within the?
medulla oblongata
When are nuerotransmitters released?
Nuerotransmitters are released when calcium reacts and causes a chemical reaction within the synapse.
What is the name of the layer of accumulation of water within the ground?
The water table
The process in which enzymes within neurons convert precusors into neurotransmitter molecules is called?
Synthesis
What causes oedema?
Oedema is the accumulation of fluid within any part of the body.
Within the axonal endings are many small vesicles containing a neurotransmitter substance called?
Acetylcholine
