but skeletal muscles can only exert force by pulling, they cannot push, so moving a joint back and forth requires an antagonistic pair, which is just a fancy way of saying two muscles that pull in ...

Walking and running upright on two feet as humans do requires some specialized adaptations of the skeleton and muscles. Modern human anatomy ... painful problems from back injuries to fallen ...

Skeletal muscle is a subtype of muscle formed of bundles of elongated, cylindrical, multinucleate muscle fibres arranged in a striated pattern. Skeletal muscle is attached to the skeleton by ...

In vertebrates, the skeleton of different regions ... which arise from the sides of the embryo's back and form -- besides bones -- also muscles and parts of the skin. The third group originates ...

In our leg, if the muscle on the back of our thigh contracts and ... Biological processes of the human body. You could get a skeleton model and connect rubber bands to the bones in order to ...