. Anatomy, descriptive and applied. Anatomy. 630 THE VASCULAR SYSTEMS sternal branch, which crosses over the sternal end of the clavicle to the skin of the upper part of the thorax; and a supra-acromial branch {ramus acromialls), which piercing the Trapezius muscle, supplies the skin over the acromion, anastomosing with a branch of the acromiothoracic artery. A small subscapular branch is given off as the artery passes over the transverse ligament of the scapula; it descends into the subscapular fossa, ramifies beneath the Subscapular muscle, and anastomoses with the posterior and subscapular
. Anatomy, descriptive and applied. Anatomy. 630 THE VASCULAR SYSTEMS sternal branch, which crosses over the sternal end of the clavicle to the skin of the upper part of the thorax; and a supra-acromial branch {ramus acromialls), which piercing the Trapezius muscle, supplies the skin over the acromion, anastomosing with a branch of the acromiothoracic artery. A small subscapular branch is given off as the artery passes over the transverse ligament of the scapula; it descends into the subscapular fossa, ramifies beneath the Subscapular muscle, and anastomoses with the posterior and subscapular arteries. The suprascapular artery also sends branches to the acromioclavicular and shoulder-joints, and a nutrient artery to the clavicle. Posterior scapular. rminaiion of suhscapular. Fig. 457.—The scapular and circumflex arteries. The transverse cervical artery (a. transversa colli) (Fig. 435), larger than the suprascapular, passes transversely outward, across the upper part of the sub- clavian triangle, to the anterior margin of the Trapezius muscle, beneath which it divides into two branches, the superficial cervical and the posterior scapular. In its passage across the neck it crosses in front of the phrenic nerve, Scaleni muscles, and the brachial plexus, between the divisions of which it sometimes passes, and is covered by the Platysma, Sternomastoid, Omohyoid, and Trapezius muscles. The superficial cervical (ramus ascendens) ascends beneath the anterior margin of the Trapezius, distributing branches to it and to the neighboring muscles and lymph nodes in the neck, and anastomosing with the superficial branch of the arteria princeps cervicis. The posterior scapular (ramus descendens) (Fig. 435) passes beneath the Levator anguli scapulae muscle to the superior angle of the scapula, and then descends along the posterior border of that bone as far as the inferior angle. In its course it is covered by the Rhomboid muscles, supplying them and the Latissimus
Size: 1629px × 1533px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectanatomy, bookyear1913
