The shoulder muscle that is considered the strongest supinator is the biceps brachii.
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 antagonist for the supinator muscle is the pronator teres muscle. These muscles work in opposition to each other to produce rotation of the forearm.
The supinator muscle, bicipital aponeurosis and brachioradialis muscle
supinator
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.
neck muscle is voluntary muscle i think this is correct
Voluntary muscle is the one we can control. For example, the skeletal muscle.
The biceps brachii is the strongest supinator of the body. It is a powerful muscle located in the upper arm that helps to rotate the forearm into a palm-up position.
The yunteris muscle positioned just below the thumb
voluntary