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"Muscle contraction begins with an electrical nerve impulse that results in a release of Ca2+ ions into the myosin-actin structure. The calcium ions in turn produce conformational changes that result in the sliding of the threads through each other, shortening the myosin-actin structure. The collective effect of this process is the contraction of the muscle."
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What requires acetylcholine for contraction?
Anerobic contraction of muscles.
What the opposite of Contraction?
The general opposite of contraction is expansion, or possibly inflation. For muscles, the opposite of contraction is relaxation.
What is Thompson's disease?
A hereditary disease of the muscles characterized by prolonged contraction of the muscles whenever voluntary motion is attempted, contraction and relaxation being slow and the muscles stiff.
What is The contraction of muscles for no obvious purpose called?
An involuntary muscle contraction is called a spasm.
What is the state of readiness of muscles to contract?
contraction
What are the two movements the muscles can do?
extension, contraction
Which is a description of tetany?
prolonged contraction of the muscles
What chemicals aid in the contraction of muscles?
Acetylcholine
What is dynamic static muscles contraction?
xx
What are muscles?
Muscles are tissues composed of fibers, the contraction of which produces movement in the body.
In muscles chemical energy changes to what during contraction?
Muscles turn chemical energy into heat and work during contraction. Straight from the science book.
Why would the stomach take a long time to digest food without the muscles?
Muscles cause contraction. Contraction aides in moving the food along.
