Inferior thyroid veins Inferior thyroid veins The inferior thyroid veins appear two, frequently three or four, in number, and arise in the venous plexus on the thyroid gland, communicating with the middle and superior thyroid veins. While the superior and middle thyroid veins serve as direct tributaries to the internal jugular vein, the inferior thyroid veins drain directly to the brachiocephalic veins. They form a plexus in front of the trachea, behind the Sternothyreoidei. From this plexus, a left vein descends and joins the left brachiocephalic vein, and a right vein passes obliquely downward and to the right across the brachiocephalic artery to
American Academy of Otolaryngology–Head and Neck Surgery before adding "Head and Neck Surgery" to its name, yielding the American Academy of Otolaryngology–Head and Neck Surgery in 1980. In 1981, the American Council of Otolaryngology (ACO), which had formed in the 1960s for purposes outside the scope of the original educational organization (such as lobbying), merged with the American Academy of Otolaryngology–Head and Neck Surgery. American Academy of Otolaryngology–Head and Neck Surgery The American Academy of Otolaryngology–Head and Neck Surgery (AAO-HNS) is one of the largest of the world's many professional associations for medical specialists, with nearly 12,000 specialists in the area of otolaryngology (otorhinolaryngology) - caring for