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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.
Stimulus at which the muscle first contracts perceptibly?
Threshold stimulus
What is the tension of muscle fibers called?
The tension of muscle fibers is called muscle tension. It refers to the force generated by a muscle when it contracts. Muscle tension is necessary for movement, posture, and stabilization of the body.
What has happened in the muscle when the maximal stimulus is achieved?
Each of the individual muscle fibers in the muscle are contracted when the maximal stimulus is achieved. Dr. H.
What result would be expected if an additional stimulus equal in intensity to the first were applied to the muscle at the 60 millisecond time point?
the muscle would increase in tension to a level greater than that measured at the beginning of phase C.
A muscle fiber will not respond to a stimulus until that stimulus reaches what?
A muscle fiber will not respond to a stimulus until that stimulus reaches the threshold level needed to trigger an action potential. This threshold level is the minimum amount of stimulus required to elicit a response from the muscle fiber.
What is the definition of maximal stimulus?
The maximal stimulus is the strongest stimulus that produces increased muscle contractile force.
Which muscle characteristic describes the ability of muscle to respond to a stimulus?
Excitability
Varying the stimulus strength affect the twitch force?
Yes, varying the stimulus strength can affect the twitch force produced by a muscle. Increasing the stimulus strength can lead to a stronger muscle contraction by recruiting more muscle fibers to generate force. Conversely, decreasing the stimulus strength may result in a weaker twitch force as fewer muscle fibers are activated.
What the reaction to a stimulus by a muscle gland?
A Response
What is the difference between passive and active tension in muscle contraction?
Passive tension is the force exerted on a muscle when it is stretched, while active tension is the force generated by the muscle when it contracts.
What is the all none law of muscle response?
all-or-none law is the principle that the strength by which a nerve or muscle fiber responds to a stimulus is not dependent on the strength of the stimulus. If the stimulus is any strength above threshold, the nerve or muscle fiber will give a complete response or otherwise no response at all
