Anatom3DExtensor digitorum
Musculus extensor digitorum · Natahovač prstů
Muscles
Looks like
The main muscle on the back of the forearm, from the outer elbow, splitting into four tendons to the fingers.
What it does
Straightens the fingers and helps straighten the wrist.
Keeping it well
Cuts on the back of the hand can divide its tendons; mallet finger at the tip needs splinting for weeks.