The muscular system is made up of around 650 muscles and account for around half of the weight of our body. As well controlling the movement of our body, they also control the movements of organs such ...

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The origin is the end of a muscle which is attached to a fixed bone. The insertion is the other end of the muscle that is attached to the bone which moves. Muscular contractions are defined as the ...

Muscles are attached to bones by tendons. Muscles contract to move our bones by pulling on them. However, muscles can only pull; they cannot push. This is why they usually work a joint in pairs. One ...