Tight hip flexors, especially a deep muscle called the psoas, can silently stress your spine. Here's why this muscle deserves ...

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 ...

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 ...

Part two of two teaching films about human anatomy which is devoted to the action of the skeletal muscles in producing movement of the bones at the joints of the human skeleton. It uses live ...

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 ...