coracoacromial

Its apex, which corresponds to the point of meeting of these two borders in front, is thin, and has attached to it the coracoacromial ligament.

II. Osteology. 6a. 2. The Scapula (Shoulder Blade) 1918

It is thick medially, but thinner laterally under the coracoacromial ligament.

IV. Myology. 7c. The Muscles and Fasciæ of the Shoulder 1918

The joint is protected above by an arch, formed by the coracoid process, the acromion, and the coracoacromial ligament.

III. Syndesmology. 6c. Humeral Articulation or Shoulder-joint 1918

The great width of the central portion of the humeral head also allows of very free horizontal movement when the arm is raised to a right angle, in which movement the arch formed by the acromion, the coracoid process and the coracoacromial ligament, constitutes a sort of supplemental articular cavity for the head of the bone.

III. Syndesmology. 6c. Humeral Articulation or Shoulder-joint 1918

The horizontal portion is flattened from above downward; its upper surface is convex and irregular, and gives attachment to the Pectoralis minor; its under surface is smooth; its medial and lateral borders are rough; the former gives attachment to the Pectoralis minor and the latter to the coracoacromial ligament; the apex is embraced by the conjoined tendon of origin of the Coracobrachialis and short head of the Biceps brachii and gives attachment to the coracoclavicular fascia.

II. Osteology. 6a. 2. The Scapula (Shoulder Blade) 1918