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rolandoaswain | dodany 4137 dni 18 godzin 11 minut temu | (quality-steroids-online.blogspot.com) | obserwuj nie obserwuj

There are three types of muscles in the human body; skeletal, smooth and cardiac. In general, muscles are essentially major tissues whose function is to convert chemical energy in to mechanical work by contracting - the process of “squeezing” together large proteins (actin & myosin) to shorten muscle fibers. Cardiac muscles are fundamentally muscles that cause the ventricle to contract during the pumping of blood while smooth muscles generally transport matter such as blood to other parts of the body through the process of peristalsis (contraction & expansion). Both these muscles are involuntary – they are not consciously controlled. For the purpose of this paper, the skeletal muscles will primarily be focused on. The skeletal muscles, also dubbed striated muscles, are voluntary muscles which are attached to the skeleton.

kategoria: Sport | tagi: body muscles