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Essential elements (as in elements pharmacologically) would be Na (Sodium) and Ca (Calcium) - not including Chlorine as muscle twitches occur without innovation of somatic motor neuron. If your not talking about a twitch you may possibly also include chlorine..
The influx of Na (sodium) into the muscle cell initiates the muscle's generation of an Action potential, which then travels down the T-Tubules, triggering the influx of Ca (Calcium) into the sarcomere (muscle cell cytoplasm). The Ca then binds to tropoponin (receptors on tropomyosin) which the 'calcium tropoponin' complex then pulls the tropomyosin causing the revealance of Myosin binding site. ATP comes and causes myosin heads to lift and bind to actin - filaments move toward M line - u have a muscle contraction.
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Constant contraction of a muscle is?
constant contraction of a muscle is called the muscle tone
What is muscle contraction without muscle shortening is what kind of contraction?
Isometric contraction. This type of contraction occurs when the muscle generates tension without changing its length, such as when holding a weight in a fixed position.
What does the contraction of the gastrocnemius muscle usually result in?
type of contraction of gastrocnemius muscle?
Describe the events of muscle cell contraction?
6 steps in a muscle contraction
What is the difference between isotonic and isometric contractions?
An Isotonic muscle contraction is a muscle contraction that makes your limbs move whereas an Isometric contraction is a muscle contraction where the limbs stay static
What factors affect muscle contraction?
the degree of muscle stretch is affect the strength or force of skeletal muscle contraction
The muscle decreases in muscle length during contraction but tension is the same?
Isotonic contraction
What is a concentric contraction?
concentric contraction is atype of muscle contraction which the muscle shortens while genrating aforce The muscle shortens to produce movement. A muscle contraction in which shortening occurs.
What component is not essential for the process of muscle contraction?
Actomyosin does not seem to be essential for the process of muscle contraction. The most important elements of muscle contraction include potassium and ATP.
Which muscle contraction does acetylcholine and norepinephrine affect?
Acetylcholine and norepinephrine both affect smooth muscle contraction. They stimulate contraction in some muscles and inhibits contraction in others.
What type of muscle contraction will shorten a muscle and decrease the angle between two bones?
Concentric muscle contraction will shorten a muscle and decrease the angle between two bones. This type of contraction involves the muscle generating force as it shortens to move a body part.
What is the difference between a strong muscle contraction and a weak muscle contraction?
one would be the amount of contractile strength that results from a muscle contraction.
