The pectoralis muscle.
Subscapularis muscle
lateral rotation of humerus (upper arm)
infraspinatus muscle
the answer isD. Infraspinatus
Infraspinatus.
is a muscle in the rotator cuff that assists the moving of the shoulder
When one muscle pulls, the other muscle relaxes.
for biceps it is triceps
antagonistic muscles
because you suck
The supraspinatus muscle contains mostly type I (slow-twitch) muscle fibers, which are more fatigue-resistant and used for sustained contractions. The infraspinatus muscle contains a mix of type I and type II (fast-twitch) muscle fibers, which are used for more powerful and quick contractions.
A antagonist muscle is a muscle that opposes the action of another muscle. The Triceps Brachii is the antagonist of the Biceps Brachii.