. New elements of operative surgery . dens. ~ Aorta. 7. Scalenus anticus muscle. A ^^^^ Innominata. 8. Subclavian artery, after it has passed 4. Ramusthyroideusarterimthyroideae. ^ the scaleni muscles. 5. Sterno-cleido mustoideus. 9. Transversalis humeri of its natural sizeia Transversalis colli. b Cprvicalis superficialis et profunda. C Portion of the carotid separated by the ligatures. d Obliterated carotid. e Superior thyroidal artery. / Inferior portion of the labial, as divided in the Mental artery. h Superior portion of the labial, where tied in the operation. • Plexus of art
. New elements of operative surgery . dens. ~ Aorta. 7. Scalenus anticus muscle. A ^^^^ Innominata. 8. Subclavian artery, after it has passed 4. Ramusthyroideusarterimthyroideae. ^ the scaleni muscles. 5. Sterno-cleido mustoideus. 9. Transversalis humeri of its natural sizeia Transversalis colli. b Cprvicalis superficialis et profunda. C Portion of the carotid separated by the ligatures. d Obliterated carotid. e Superior thyroidal artery. / Inferior portion of the labial, as divided in the Mental artery. h Superior portion of the labial, where tied in the operation. • Plexus of arteries formed by inosculations of the ascending thyroid, and a descending branch of the o( cipital. k Descending branch of the occipital. « External carotid filled with injection. 336 NEW ELEMENTS OF OPERATIVE SURGEBT. 2dly. The arteries of tie left side of the head and neck. See plate III. The left carotid passing up the neck equal in size to the , furnished the greatest part of the blood for the rigtit siae. (Plate 3.). This plate wiU give some idea of the success which attended the injection of the left siof the head and neck. Most of the more considerable vessels are here delineated, Dui ibeauty of the preparation far surpasses the plate, in the minuteness with whicn xnc veare fUled. All of these are preternaturally enlarged Only a few of the arteries wmcnmost enlarged, will be referred to in the explanation of this plate. There is no vancijthe course or distribution of the arteries. Fig. 1. The two portions of the stemo-cleido mastoideus muscle. 2. Left carotid artery, as large as the innominata. 3. Left subclavian artery, external to the scaleni muscles. 4. Superior thyroid artery. 5. Labial artery much enlarged. 6. Mental artery twice its common size. 7. Par vagum raised up, and seen crossing the carotid artery. 8. Arch of the aorta. miiow^This beautiful preparation is still in fine preservation in my museum at the Medical touegeof the University. DR. MOTT O
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