Muscles and Bones · Muscles
One end stays put; the other end is the one that moves.
Every muscle crosses at least one joint and attaches at both ends. One attachment stays relatively still — the origin. The other gets dragged toward it — the insertion. Which is which tells you exactly what the muscle will do.
There's more: one end stays put; the other end is the one that moves. The full explanation — and the interactive version you can tap and quiz yourself on — lives in the app.
Body Atlas is an educational product. It does not provide diagnosis, treatment, or personal medical advice. · Privacy