The active elements of the propulsion system provide a variety of human motion when moving in space, to maintain balance, breathing movements, reducing the walls of the internal organs, hyphenation, and so on.
There are three types of muscle tissue define by Mike Geary, the author of Truth About Six Packs Abs Review: skeletal, smooth and cardiac. Function of cardiac tissue is clear from the title. Smooth muscle – muscle is the internal organs. They reduce blood vessels, producing a reduction of the intestine, promoting the movement of food, and perform many other vital functions.
These two types of muscles we cannot control,then work some reflexes. Skeletal muscle is – it is just what you want to pump up using the iron. The function of skeletal muscles – skeletal parts move relative to each other. It is these muscles and we’ll talk further.
Skeletal muscle is composed of striated muscle fibers bonded by loose connective tissue in the first-order beams. These in turn are combined into bunches of second order, and so on. As a result, the muscle bundles all orders together and form a sheath of connective muscle “belly”. Connective tissue layer, which are located between the muscle bundles at the edges “abdomen”, go into the tendon part of the muscle attaching to the bone. During contraction of muscle shortening “abdomen” closer to its edges, while it reducing muscle via tendon pulls the bone, which plays the role of a lever. That is somewhat simplified model of movement.