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What substance is released by the nervous system and excites muscle cells?
Calcium
After nervous stimulation of the muscle cell has ceased the calcium in the muscle?
uhhh
Does calcium has any role in vasoconstriction?
Yes it does, as a matter of fact calcium plays a huge role in muscle contraction, as so in the smooth vascular muscle.
Is calcium a fiber?
No. Calcium does have a major role in muscle fibers when your muscles contract, but it is not the actual fiber.
What does calcium do?
Calcium in the diet is necessary for strong bones and teeth. It is also used in blood clotting, nerve regulation, and muscle contraction. Calcium carbonate is a major biological structural material, especially in mollusc exoskeletons.
What substance is released by the nervous system and excites muscle cells?
Calcium
Where does calcium calmodulin system of contraction regulation is found?
Smooth muscle only.
What is The calcium calmodulin system of contraction regulation found in?
smooth muscle only
What is the ion called that triggers muscle contractions?
There are several, but a calcium ion is one that is used in skeletal muscle contraction.
Where is calcium stored in a relaxed skeletal muscle?
yes calcium is stored in muscles as it is necessary for muscle contraction and muscle contraction is very sensitive to the amount of calcium
What happens if your calcium ion concentration drops by 50 percent?
In all likelihood you would die as calcium is essential for both muscle contraction and nervous system communication.
What minerals are needed for normal muscle contraction?
Calcium
How is calcium used in muscle contraction?
Calcium binds to troponin, which moves the tropomyosin out of the way so that myosin can bind to actin; this ultimately causes a power-stroke.
Why would a calcium channel blocker lower Cardiac Output?
One of the factors that make muscles contract is the release of calcium onto the muscle fibers. An electrical signal is sent into the muscle and stimulates the sarcoplasmic reticulum to release calcium along the muscle. A calcium channel blocker may reduce the muscle's contact with calcium and could possible explain why the heart has lower output.
After nervous stimulation of the muscle cell has ceased the calcium in the muscle?
uhhh
What would happen to a muscle's ability to contract if calcium levels within the muscle were low?
Muscles cannot contract without calcium
What is done by calcium channel blockers?
Calcium channel blockers block the entry of calcium into muscle cells in artery walls. Muscle cells need calcium to constrict, so reducing their calcium keeps them more relaxed and lowers blood pressure.
