The active phase of respiration in birds is exhalation, requiring muscular contraction.
From the en.wikipedia.org
Input is the chemical energy that fuels muscular contraction.
From the sciencedaily.com
Like other snails, a slug moves by rhythmic waves of muscular contraction on the underside of its foot.
From the en.wikipedia.org
Stimulation of these receptors causes a muscular contraction.
From the en.wikipedia.org
Nerves control the contraction of muscles by determining the number, sequence, and force of muscular contraction.
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This enzyme quickly reduces the stimulus to the muscle, which allows the degree and timing of muscular contraction to be regulated delicately.
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To change colour the animal distorts the sacculus form or size by muscular contraction, changing its translucency, reflectivity or opacity.
From the en.wikipedia.org
Their measurements confirm that in the direction that corresponds to muscular contraction and relaxation, the titin-telethonin complex is the strongest protein bond found so far in nature.
From the sciencedaily.com
Oxygenated water is taken into the mantle cavity to the gills and through muscular contraction of this cavity, the spent water is expelled through the hyponome, created by a fold in the mantle.