Now that we've seen all the muscles that act on the scapula, and on the proximal humerus, let's review them. If you want to test yourself, turn off the sound.
Here's subscapularis, supraspinatus, infraspinatus, and teres minor. Here's teres major, and coracobrachialis.
Now the muscles that arise from the trunk: serratus anterior, levator scapulae, the two rhomboids, minor, and major, trapezius, pectoralis minor, subclavius, and omohyoid; and lastly pectoralis major, latissimus dorsi, and deltoid.