. An analytical compendium of the various branches of medical science, for the use and examination of students. Anatomy; Physiology; Surgery; Obstetrics; Medicine; Materia Medica. SUBCLAVIAN. 137 the pons varolii, giving ^^S- ^^^• off several branches in its course. The princi- pal being the superior cerebellar'' and the poste- rior cerebral arteries.^ The posterior com- municating^ joins the carotid with the posterior cerebral. From the carotid, which enters through the carotid canal, are given off the ophthalmic:^^ middle ce- rebrals^ and anterior ce- rebral arteries .^^ The two anterior cer
. An analytical compendium of the various branches of medical science, for the use and examination of students. Anatomy; Physiology; Surgery; Obstetrics; Medicine; Materia Medica. SUBCLAVIAN. 137 the pons varolii, giving ^^S- ^^^• off several branches in its course. The princi- pal being the superior cerebellar'' and the poste- rior cerebral arteries.^ The posterior com- municating^ joins the carotid with the posterior cerebral. From the carotid, which enters through the carotid canal, are given off the ophthalmic:^^ middle ce- rebrals^ and anterior ce- rebral arteries .^^ The two anterior cerebral arteries are connected by a trans- verse branch^^ called the anterior communicating artery, and thus is form- ed the circle of Willis. These vessels are distri- buted to the ^:»za mater, and the substance of the brain. SUBCLAVIAN. The subclavian^ of the right side arises from the innominata,* and the subclavian of the left side from the arch of the aorta. The right is shorter and more superficial than the left. The subclavian emerges from the thorax by passing over the first rib between the anterior and middle scaleni muscles. Its branches are usually five in number. Some of which arise by a common origin^ called the thyroid axis. Vertebral,^ is the first and largest branch of the subclavian. It passes through the foramina of the trans- verse processes of the six superior cervical vertebroe, and enters the ca- vity of the cranium through the fora- men magnum Fig. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Neill, John, 1819-1880; Smith, Francis Gurney, 1818-1878. Philadelphia, Lea and Blanchard
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