The subscapularis muscle medially rotates the scapula. The muscle is innervated by the upper and lower subscapular nerves.
a combined contraction of the levator scapulae, rhomboid major and minor muscles and the latissimus dorsi muscle.I would narrow this answer down to the Rhomboid Muscles-Luceinrhomboids
The muscle you are referring to is the subscapularis muscle. It originates on the subscapular fossa of the scapula and inserts on the lesser tubercle of the humerus. It is responsible for medial rotation of the shoulder joint.
The strongest protractor of the scapula is the serratus anterior muscle. It originates from the upper ribs and inserts along the medial border of the scapula. Contraction of the serratus anterior muscle pulls the scapula forward around the rib cage.
The rhomboid muscles and the middle trapezius muscle pull the scapulae medially. These muscles work together to retract and stabilize the scapulae toward the spine.
Rhomboid Major
The primary muscle responsible for moving the scapula forward and downward is the serratus anterior. This muscle originates along the upper eight or nine ribs and inserts along the inner border of the scapula. Contraction of the serratus anterior pulls the scapula forward and downward along the ribcage.
The scapula is not a muscle; it is a bone.
downward Rotation (Inferior Rotation) Rotary movement of the scapula; moving inferior angle of scapula medially and downward.Levator scapulaeRhomboidsPectoralis minorPectoralis majorLatissimus dorsi
The "Subscapularis" This muscle rotates the arm medially (sub = below, scapulo = shoulderblade)
The inferior rectus muscle is responsible for turning the eye downward and medially.
The medial rectus muscle is responsible for moving the eyeball medially by contracting. This muscle is one of the extraocular muscles that control eye movements.
Eye movements are accomplished by the Extraocular Muscles. The muscle that moves the eye medially is the Medial Rectus.