Superior laryngeal vein

The superior laryngeal vein goes along with the internal laryngeal nerve (one branch of the superior laryngeal nerve), which penetrates the thyrohyoid membrane, a tough fibro-elastic layer joining the upper margin of the thyroid cartilage and the upper margin of the back of the hyoid bone. The superior laryngeal vein empties into the superior and middle thyroid veins, which in turn drain into the internal jugular vein, which collects blood from the brain, head, face, and neck and ultimately transports it to the heart. The superior laryngeal vein and artery emerge as the first branches of the superior thyroid vessels. These two, along with internal laryngeal nerve, cross over the area between the middle and inferior constrictors, which is closed in by the thyrohyoid membrane. While the artery is a vessel with a branching system that carries blood away from the heart towards all parts of the body, the vein simply functions in the opposite direction. The superior laryngeal vein is also one of the tributaries of the superior thyroid vein, along with the sternocleidomastoid and cricothyroid veins.

Written and medically reviewed by the Healthline Editorial Team
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In Depth: Superior laryngeal vein

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