Hand Supination and Pronation

Supination of the hand brings the palm to face forward in the anatomical position. It is the position you would place your hand in order to hold "soup".

Muscles: biceps brachii and supinator. Brachioradialis can return the pronated hand to a position mid-way between supination and pronation.

Pronation of the hand brings the palm to face posteriorly in the anatomical position, or face down when lying down.

Muscles: pronator teres and pronator quadratus. Brachioradialis can return the supinated hand to a position mid-way between supination and pronation.