Question

What are the "rules" for how muscles produce movements depending on which side (anterior, lateral, etc) of a joint they cross?

Answer 1

1.muscles have two attachment and must cross one point

2.muscles only pulls and don't push

3.insertion is the attachment that moves while that which is stationary is origin

4.muscles work in opposing pairs

5.muscle striation shows the pull direction

Step-by-step explanation: