highest intercostal vein

su·preme in·ter·cos·tal vein

[TA]
the vein draining the first intercostal space into either the vertebral or the brachiocephalic vein.

high·est in·ter·cos·tal vein

(hī'ĕst in'tĕr-kos'tăl vān)
Drains the first intercostal space into either the vertebral or the brachiocephalic vein.
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It contains the origins of the Sternohyoidei and Sternothyreoidei and the lower ends of the Longi colli; the aortic arch; the innominate artery and the thoracic portions of the left common carotid and the left subclavian arteries; the innominate veins and the upper half of the superior vena cava; the left highest intercostal vein; the vagus, cardiac, phrenic, and left recurrent nerves; the trachea, esophagus, and thoracic duct; the remains of the thymus and some lymph glands.

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