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The superior laryngeal artery is branch of the superior thyroid artery that accompanies the internal laryngeal branch of the superior laryngeal nerve, beneath the thyrohyoid muscle.
This artery branches from the superior thyroid artery near its bifurcation from the external carotid artery. Together with the internal laryngeal nerve, it pierces the lateral thyrohyoid membrane, and supplies blood to the muscles, mucous membrane, and glands of the larynx, connecting with the branch from the opposite side.