Radial collateral ligament of wrist joint
Ligamentum collaterale carpi radiale · Vřetenní postranní vaz zápěstí
Joints & cartilage
Looks like
A band on the thumb side of the wrist, from the tip of the radial styloid to the scaphoid.
What it does
Limits the wrist tilting toward the little finger.
Keeping it well
Minor as a stabiliser; the radial artery runs close by in the anatomical snuffbox.