https://buyparkdomain.com/story.php?title=muscular-system-diagram The muscles connect the bones of the skeletal system and it is one of their main functions. As the muscles contract they move the bones. However, muscles also have other minor functions which are not that well-known. They help in increasing the body fluids, like blood and lymph. The muscular system also helps to improve the immunity in the body. Fri, 30 Jun 2017 08:00:52 EDT en