supinator muscle hold your arm like u r holding a bowl of soup, hand facing up. pronators pour out the soup, hand facing down.
This is mostly achieved by the Pronator Teres and hte Pronator Qudratus muscles.
The antagonist for the supinator muscle is the pronator teres muscle. These muscles work in opposition to each other to produce rotation of the forearm.
Pronator quadratus and pronator teres perform pronation, brachioradialis aids initiation of the movement.
The biceps brachii muscle acts as a synergist for supination of the hand. It works in coordination with other muscles, such as the supinator muscle, to rotate the forearm and bring the palm facing upwards.
The most common treatment for pronator teres syndrome, which is often mis-diagnosed as carpal tunnel syndrome, is Neuromuscular Therapy or Trigger Point Therapy to eliminate myofascial trigger points in the pronator teres muscle, and its associated muscles and antagonists like the supinator.
The pronator teres and pronator quadratus
The shoulder muscle that is considered the strongest supinator is the biceps brachii.
biceps brachii,pronator quadratus,supinator/pronator teres(depending on the direction of rotation) for turning and flexor digitorum superficialis and flexor digitorum profundus for flexing the fingers and palm to hold the key in place. The main muscle however in turning a key is biceps brachii,while pronator quadratus hold the two bones of the forearm together.the supinator or pronater teres supinate or pronate the arm respectively.
Pronator teres
pronator
These muscles can be divided into flexor-pronator and extensor-supinator groups. Forearm Pronation: 1. Pronator Teres 2. Pronator Quadratus Forearm Supination 1. Biceps Brachii 2. Supinator
pronates the forearm