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it is known as the threshold stimulus

usually seen in tonic contraction

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The minimum stimulus needed to cause a contraction is called the?

The minimum stimulus needed to cause a contraction is called the threshold stimulus. This is the minimal level of stimulation required to activate muscle fibers and initiate a contraction response.


How does the threshold stimulus influence muscle contraction?

The threshold stimulus is the stimulus required to create an action potential. So any stimulus under this level will not cause muscle contraction, while a stimulus above this level will cause the muscle to contract. The higher the stimulus the more muscle fibers are recruited, and thus the higher the response.


What is a stimulus that results in no perceptible contraction?

A subthreshold stimulus is one that does not generate a strong enough signal to elicit a perceptible contraction in muscle fibers. It is below the threshold required to cause an action potential and result in muscle contraction.


A weak stimulus can cause a muscle fiber to contract only partway?

When a weak stimulus is applied to a muscle fiber, only a few motor units are recruited to contract. This results in a partial muscle contraction where not all muscle fibers are activated. Stronger stimuli recruit more motor units, leading to a full muscle contraction.


What is the minimal impulse that can initiate a muscle contraction?

Threshold stimulusThe minimal level of stimulation required to cause a fiber to contract is called the THRESHOLD STILULUS.


Does Muscle glycogen cause muscle contraction?

no, lactic acid does


What does noradrenaline do?

It can cause vascular smooth muscle contraction


Which type of contraction is most likely to cause discomfort in q5?

The eccentric muscle contraction is most likely to cause discomfort in q5.


Does contraction of the dartos muscle cause elevation of the testes?

No, contraction of the dartos muscle causes wrinkling of the scrotal skin to regulate temperature, but it does not directly cause elevation of the testes. Elevation of the testes is primarily controlled by the cremaster muscle.


How the muscle of the heart different from other muscle of the heart?

The heart muscle is different from smooth and skeletal muscles because it does not require a nerve to cause it to contract. The heart has it's own built in conduction system that cause's the automatic contraction and relaxation that is required for circulation. Smooth and Skeletal muscle whether it uses voluntary or involuntary muscle contraction all have innervation to cause the contraction. Sara, RN


Where are neurotransmitters that cause skeletal muscle contraction are stored?

In the myoneural junction.


What conditions cause contractions of arteriole smooth muscle?

Asthma causes contraction of the bronchial smooth muscle.