. Anatomy, descriptive and applied. Anatomy. THE DEEP VEINS OF THE UPPER EXTREMITY 735 Superior thyroid. Middle thyioul f _ II al jugular From this plexus a left vein descends and joins the left innominate trunk, and a right vein passes obliquely downward and outward across the innominate artery to open into the right innominate vein, just at its junction with the superior vena cava. The thyreoidea ima vein (v. thyreoidea ima) passes downward in front of the trachea and termi- nates in the left innomi- nate vein. These veins receive tributaries from the tracheal veins (vv. irache- ales), from
. Anatomy, descriptive and applied. Anatomy. THE DEEP VEINS OF THE UPPER EXTREMITY 735 Superior thyroid. Middle thyioul f _ II al jugular From this plexus a left vein descends and joins the left innominate trunk, and a right vein passes obliquely downward and outward across the innominate artery to open into the right innominate vein, just at its junction with the superior vena cava. The thyreoidea ima vein (v. thyreoidea ima) passes downward in front of the trachea and termi- nates in the left innomi- nate vein. These veins receive tributaries from the tracheal veins (vv. irache- ales), from the oesophageal veins (vv. oesophageae), from the inferior laryngeal veins (v. lari/iif/ea inferior). The superior intercos- tal veins (right and left) drain the blood from two or three of the intercostal spaces below the first. The right superior inter- costal vein (V. intercostalis sufrema dextra) passes downward and inward and opens into the vena azygos major; the left superior intercostal vein (v. intercos- talis swprema sinister) runs across the arch of the aorta and opens into the left innominate vein. It usually receives the left bronchial and left superior phrenic vein, and commu- nicates below with the vena azygos minor supe- rior. The vein from the first intercostal space opens directly into the corre- sponding vertebral or in- nominate vein. The superior vena cava {v. cava superior; precava) (Fig. 514)- receives the blood which is conveyed io the heart from the whole of the upper half of the body. It is a short trunk, varying from two inches and a half to three inches in length, formed by the junction of the two innominate veins. It com- ?mences at the level of the. Fig. 514.—The A-ense cav. 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 Gray, Henry, 1825-1861; Spitzka, Edward Anthony, 1876-192
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectanatomy, bookyear1913
