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What happened to the neurotransmitter release when switched from the control extracellular fluid to the extracellular fluid with no calcium?
Wiki User
∙ 11y ago
There is no neurotransmitter release from the axon terminal when there are no calcium ions in the extracellular solution. This is because the exocytosis of the synaptic vesicles is calcium dependent.
Wiki User
∙ 11y ago
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When calcium ions enter the synaptic terminal?
they cause vesicles containing neurotransmitter molecules to fuse to the plasma membrane of the sending neuron.
Is calcium the most abundant negative ion in extracellular fluid?
I believe it is Chloride? If you know the answer for sure please post it!! thank you!!
What is the chloride ion concentration in intracellular fluid?
Every Laboratory has specfic values that their Lab Medicine Docs have signed off as being Normal Values, however, generally The Intracellular Concentration of Chloride in Eukaryotic Cells is 5 milliMoles. The Extracellular Concentration of Chloride is 110 mM. The Intracellular Concentration of Calcium is < 1 mM The Extracellular Concentration of Calcium is 1.8 mM
What 2 hormones are involved in regulating the blood calcium level?
Parathyroid hormone provides a powerful mechanism for controlling extracellular calcium and phosphate concentrations by regulating intestinal reabsorption, renal secretion, and exchange between the extracellular fluid and bone of these ions. Also, Calcitonin, which is a peptide hormone secreted by the thyroid gland, tends to decrease plasma calcium concentration and usually has effects that are opposite to those of the parathyroid hormone.
What happened when soluble carbonate is passed through soluble calcium salt?
the precipitate calcium carbonate (CaCO3) is formed
Is calcium a neurotransmitter?
No, calcium itself is not a neurotransmitter BUT it is highly important in the process of the action potential. The action potential triggers the influx of calcium at the end of the terminal bouton, causing the influx of Ca2+ into the cell and this triggers for the release of the neurotransmitter. :)
What is found in extracellular fluid?
The principal elements in the extracellular fluid are sodium, potassium and calcium.
Ions which trigger the realise of neurotransmitter?
Calcium....
What ion triggers the release of a neurotransmitter at the presynaptic membrane?
Calcium triggers synaptic vesicles to discharge the neurotransmitter into the synaptic cleft.
What is the most cation extracellular fluid?
calcium ; sodium
What is an extracellular cation that contributes to the hardness of bones and teeth?
Calcium
A concept map demonstrating the events of neurotransmitter?
Action potential reaches the action terminal of a nerve cell. This triggers calcium gated ion channels in the axon terminal to open, calcium rushes in. This causes vesicles filled with neurotransmitter to fuse to the membrane and dump the neurotransmitter into the synaptic cleft by exocytosis.
After nervous stimulation of the muscle cell has ceased what happens to the calcium?
calcium is actively pumped into the extracellular fluid for storage until the next contraction
Where is Extracellular fluid found in body?
proteins and electrolytes including the liquid in blood plasma and interstitial fluid
What ion enters the axon nerve terminal to cause exocytosis of the neurotransmitter is called?
calcium
After nervous stimulation of the muscle cell has ceased the calcium does what?
is actively pumped into the extracellular fluid for storage.
What after nervous stimulation of the muscle cell has ceased the calcium?
is actively pumped into the extracellular fluid for storage.
