During surgery for a laryngeal lesion, bleeding is encountered from the arterial supply of the larynx above the vocal cords. This vessel is a branch of which artery?

• A Lingual artery
• B Inferior thyroid artery
• C Ascending pharyngeal artery
• D Superior thyroid artery ✓

Explanation

The superior laryngeal artery, which accompanies the internal laryngeal nerve through the thyrohyoid membrane to supply the supraglottic larynx, arises from the superior thyroid artery, a branch of the external carotid. The inferior laryngeal artery, supplying the glottis and subglottis with the recurrent laryngeal nerve, arises from the inferior thyroid artery, a branch of the subclavian system via the thyrocervical trunk.

Reference: Gray's Anatomy for Students, 4th ed.

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Written and medically reviewed by the StethoPrep medical team.