The antagonist is your mom
latissimus dorsi
the biggest muscle in your body.the lattisimus dorsi is a muscle which goes from the lower back towards the humerus (upper arm bone). the muscle is used to bring the arms towards the body, rotate them and draw them back and inwards towards the body. you can strengthen your lattisimus dorsi by doing:chin upslat pull downs on weight machinedpush ups
The synergist to the pectoralis major muscle is the deltoid muscle. The deltoid helps to assist in shoulder flexion and abduction, which complements the actions of the pectoralis major in movements like pushing or pressing exercises.
Quadratus Lumborum
Generally, the main trunk flexors are Rectus Abdominus and the Obliques (Internal and External). Quadratus Lumborum, Trapezius and Latissimus Dorsi also play a small role in flexion.
lattissimus dorsi
extensor digitorum longus, the extensor hallucus longus and the peroneus tertius muscles help dorsi flexiontibialis anterior
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.
It is the middle deltoidIt is the Deltoid Muscle .
The Latissimus Dorsi is located around the sides of your back.It is a muscle in your body.
lattismis dorsi