Muscles and movement
Sarcomeres in myofibrils of relaxed skeletal muscle from images.wellcome.ac.uk
In this unit we will be looking at the following key questions:
Why do muscles work in pairs?
What is a sarcomere and what does it have to do with muscle contraction?
How do muscles contract?
A great presentation on this can be found here.
Good animations to help explain what’s going on can be found here.