3D ANATOMY - Left shoulder, superficial muscles and axillary/brachial artery

This 3D printed model of the left shoulder region provides a detailed view of the superficial musculature, rotator cuff muscles, and the axillary artery as it transitions into the brachial artery. The skeletal elements include the scapula, humerus (cut at midshaft), and a sectioned clavicle (cut at mid-length).
Superficial and Deep Muscles of the Shoulder
Anteriorly, the deltoid covers the lateral shoulder, concealing the long head of biceps brachii and lateral head of triceps brachii. The clavicular head of pectoralis major, subclavius, and pectoralis minor (inserting on the coracoid process) are preserved.
Posteriorly, visible muscles include the trapezius (attached to the lateral third of the clavicle, acromion, and scapular spine), teres major, teres minor, and supraspinatus. The infraspinatus has been partially removed to reveal the suprascapular artery as it moves from the supraspinous to the infraspinous fossa. A remnant of the omohyoid and the suprascapular nerve passing beneath the suprascapular ligament are also visible.
Subscapular and Serratus Anterior Views
On the costal (anterior) surface of the scapula, the subscapularis and serratus anterior muscles are preserved, offering insight into their relationship with the thoracic wall and axilla.
Axillary and Brachial Arteries
The axillary artery, just below the clavicle, gives rise to the thoracoacromial branch, suprascapular artery, subscapular artery, and the circumflex scapular artery. The posterior circumflex humeral artery is partly visible through the quadrangular space, beneath the deltoid. Beyond the inferior border of teres major, the artery becomes the brachial artery, which gives off a visible radial collateral branch.
Neurovascular and Muscular Cross Section
A transverse cut at the humeral midshaft reveals the anatomical relationships between neurovascular bundles and the muscles of the anterior and posterior compartments, offering a clear sectional anatomy reference.