What Rotates the Palm Down?
Pronation and Supination Are a Pair of Unique Movements Possible Only in the Forearms and Hands, Allowing the Human Body to Flip the Palm Either Face up or...
Pronation and supination are a pair of unique movements possible only in the forearms and hands, allowing the human body to flip the palm either face up or face down. The muscles, bones, and joints of the human forearm are specifically arranged to permit these unique and important rotations of the hands.
What muscle rotates the palm down?
The pronator teres and quadratus control pronation, or rotation of the forearm so that the palm faces downward.
What is rotating the arm so that the palm of the hand is turned downward or backwards and palms down?
Pronation: Rotation of the forearm and hand so that the palm is down (and the corresponding movement of the foot and leg with the sole down), as opposed to supination. Prone: With the front or ventral surface downward (lying face down), as opposed to supine. Proximal: Toward the beginning, as opposed to distal.
Maya is a hardware enthusiast who tests and reviews smart home devices, smartphones, wearables, and audio gear. She focuses on practical consumer value and build quality.
