Description
The larynx is drained by the superior and inferior laryngeal veins. The superior laryngeal vein drains the upper aspect of the larynx into the superior thyroid vein. The inferior laryngeal vein drains the lower aspect of the larynx into the inferior thyroid veins.
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Vein
A venous sinus is a vein with a thin wall of endothelium that is devoid of smooth muscle to regulate its diameter.