Muscle: Contractiletissue that produces motion for functions, including body movements, digestion, focusing, circulation, and body warmth.
肌肉：可收缩的肌肉，产生的运动功能如身体动作、消化、聚焦、循环及身体保暖。
2
Such an aneurysm represents non-contractiletissue that reduces stroke volume and strains the remaining myocardium. The stasis of blood in the aneurysm predisposes to mural thrombosis.
动脉瘤弹性差，降低了心脏的每搏排出量并增大了残余心肌张力。
3
A protein found in muscle cells that, together with actin, forms actomyosin, which provides the contractile mechanism of muscle tissue.