coracoclavicular

The space between the upper border of the Pectoralis minor and the clavicle is occupied by the coracoclavicular fascia.

VI. The Arteries. 4b. The Axilla 1918

It pierces the coracoclavicular fascia and, crossing the axillary artery, ends in the axillary vein just below the clavicle.

VII. The Veins. 3c. The Veins of the Upper Extremity and Thorax 1918

The coracoclavicular fascia is pierced by the cephalic vein, thoracoacromial artery and vein, and external anterior thoracic nerve.

IV. Myology. The Muscles Connecting the Upper Extremity to the Anterior and Lateral Thoracic Walls 1918

The thoracoacromial artery (a. thoracoacromialis; acromiothoracic artery; thoracic axis) is a short trunk, which arises from the forepart of the axillary artery, its origin being generally overlapped by the upper edge of the Pectoralis minor Projecting forward to the upper border of this muscle, it pierces the coracoclavicular fascia and divides into four branches—pectoral, acromial, clavicular, and deltoid.

VI. The Arteries. 4b. The Axilla 1918

It passes across the axillary artery and vein, pierces the coracoclavicular fascia, and is distributed to the deep surface of the Pectoralis major.

IX. Neurology. 6b. The Anterior Divisions 1918

Sternoclavicularis from manubrium to clavicle between Pectoralis major and coracoclavicular fascia.

IV. Myology. The Muscles Connecting the Upper Extremity to the Anterior and Lateral Thoracic Walls 1918

As the fascia leaves the lower edge of the Pectoralis major to cross the floor of the axilla it sends a layer upward under cover of the muscle; this lamina splits to envelop the Pectoralis minor, at the upper edge of which it is continuous with the coracoclavicular fascia.

IV. Myology. The Muscles Connecting the Upper Extremity to the Anterior and Lateral Thoracic Walls 1918

The extent of this rotation is limited by the two portions of the coracoclavicular ligament, the trapezoid limiting rotation forward, and the conoid backward.

III. Syndesmology. 6b. Acromioclavicular Articulation 1918

—The coracoclavicular fascia is a strong fascia situated under cover of the clavicular portion of the Pectoralis major.

IV. Myology. The Muscles Connecting the Upper Extremity to the Anterior and Lateral Thoracic Walls 1918

The rest of this surface is occupied by a groove, which gives attachment to the Subclavius; the coracoclavicular fascia, which splits to enclose the muscle, is attached to the margins of the groove.

II. Osteology. 6a. The Bones of the Upper Extremity. 1. The Clavicle 1918