MEDICAL PHYSIOLOGY

Detailed explanation-1: -The minimal level of stimulation required to cause a muscle fiber to contract is called: a threshold stimulus. When a muscle fiber is stimulated it will contract to its fullest ability.

Detailed explanation-2: -The minimum strength required for the stimulus to initiate the response of muscle contraction is known as the threshold stimulus. No response is seen if the magnitude of the stimulus is below this threshold value. The sliding filament theory explains the contraction of muscles when the threshold stimulus is achieved.

Detailed explanation-3: -The minimum level of stimulation required to cause a muscle fiber to contract is called the threshold stimulus.

Detailed explanation-4: -∙The threshold stimulus in muscle contraction is defined as the minimum strength which is required for the stimuli to instigate the response in a muscle contraction. ∙ If the strength of the stimulus is below the threshold stimulus there is no response seen.

Detailed explanation-5: -Generally, a threshold stimulus is the smallest amount of stimulation or force that is needed to initiate a response. A physiological example can be observed when considering cell excitability to produce a muscle twitch.