what muscle is the prime mover for shoulder flexion and adduction
the biceps is the muscle that makes the shoulder flex
Prime mover in flexion of the elbow is the biceps brachii. The other muscle which assists in this movement when the forearm is supination is the brachialis.
The prime mover for the shoulder flexion and abduction is the anterior deltoid. Other movers that may be involved includes the pectoralis minor and serratus anterior among others
Do you mean flexion and (abd)uction?? If so, the prime mover would be the deltoid muscle with many smaller muscles assisting. If you are in fact meaning flexion and adduction, the prime mover would be the pectoralis major and the latissimus dorsi with many smaller muscles assisting.
a prime mover is the main muscle that causes movement. In the case of the hip flexion, the prime mover would be the rectus femoris or the ilopsoas