Anatomical snuff box

To remember the structures of anatomical snuffbox, look at your right hand and extend your thumb. You see three prominent tendons. The tendon in between is a brevis tendon - Extensor policis brevis. The tendon that meets it from the extensor surface is therefore extensor policis longus. The remaining tendon going in different direction of Extensor Policis Brevis is Abductor Policis Longus. Note that the longus goes parallel and brevis converges on both ends.