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There are several, but a calcium ion is one that is used in skeletal muscle contraction.
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∙ 13y ago
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∙ 12y agoNa, K, and Ca. Im not for sure but i think those are it...
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∙ 13y agoCa++, the calcium cation (positively charged ion) is responsible for triggering muscle contractions.
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∙ 14y agoPrimariy calcium ions (Ca2+)
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∙ 14y agopotassium
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∙ 13y agocalcium
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Neurotransmitter that triggers muscle contraction?
Acetylcholine (ah-Seh-til-KO-leen) is the organic molecule that triggers muscle contractions in humans. Acetylcholine acts on both the central nervous system (CNS) and on the peripheral nervous system (PNS). It is also the principal neurotransmitter in autonomic ganglia.
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 change in membrane potential triggers an action potential?
An ion channel.
What is an important ion for muscle contraction?
calcium
When the nervous system signals a muscle to contract what ion channels open?
sodium ion
When the nervous system signals a muscle to contract the ion channels open?
sodium ion
Is the concentration of calcium ion greater in the sarcoplasmic reticulum or sarcoplasm of a resting muscle?
The Ca2+ ion concentration of the sarcoplasmic reticulum will be greater in a resting muscle
What triggers the action potential?
A temporary accumulation of sodium ions at the axon hillock which yields a voltage sufficient to open voltage-gated ion pores on the axon is what triggers an action potential.
What is an atom with an electrical charge on it called?
An atom with a charge (either positive or negative) is called an "ion." An ion with a positive charge is called a "cation" and an ion with a negative charge is called an "anion ."
Which ion no longer influxes into the muscle fiber when acetylcholine is degraded?
calcium
What is the ion necessary in cross bridging to produce a muscle contraction is?
calcium
What is the specific name for a negative ion is an?
A negative ion is called an anion, while a positive ion is called a cation.
