MEDICAL NAME FOR FINGERS
The Medical Name for Fingers is 'Phalanges'. The name phalange is derived from the Greek word 'Phalanx' which means a straight projection such as the rectangular formation of heavy infantry used by the Roman Army - also called a phalanx formation.
The thumb finger has its own name - Pollicus - and the other fingers are numbered from 2 at the index finger to 5 at the pinky finger.
The long bones just behind your fingers are called metacarpals. And the collection of marbles bones in your wrist are named the Carpals.
Most of the strength of your fingers actually comes from muscles in your forearms that pull on your fingers like puppets on strings called tendons. Your whole hand has 27 bones. Now you know :)