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superior laryngeal nerve ≅ superior laryngeal nerve (Q965012) superior laryngeal nerve superior laryngeal artery ≅ superior laryngeal artery (Q487082) superior laryngeal artery superior cornu of thyroid cartilage ≅ superior horn of thyroid cartilage (Q7643625) superior cornu of thyroid cartilage
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.
Superior laryngeal artery This page was last edited on 29 December 2019, at 05:06 (UTC). Text is available under the Creative Commons Attribution ...
Arising in carotid triangle [1]. Superior thyroid artery. Hyoid (infrahyoid) artery; Sternocleidomastoid artery; Superior laryngeal artery; Cricothyroid artery; Ascending pharyngeal artery
The external branch functions to tense the vocal cords by activating the cricothyroid muscle, increasing pitch. The external laryngeal nerve gives branches to pharyngeal plexus and the superior portion of the inferior pharyngeal constrictor, and communicates with the superior cardiac nerve behind the common carotid artery.
It is innervated by the pharyngeal plexus and by the recurrent laryngeal nerve. The vascular supply to the laryngopharynx includes the superior thyroid artery, the lingual artery and the ascending pharyngeal artery. The primary neural supply is from both the vagus and glossopharyngeal nerves.
On the lateral side of the vessels, the accessory nerve runs for a short distance before it pierces the Sternocleidomastoideus; and on the medial side of the external carotid, just below the hyoid bone, the internal branch of the superior laryngeal nerve may be seen; and, still more inferiorly, the external branch of the same nerve.
The arteries of the sixth arch persist as the ductus arteriosus on the left, and are obliterated on the right. [10]: 318–323 After birth, the ductus arteriosus regresses to form the ligamentum arteriosum. During growth, these arteries descend into their ultimate positions in the chest, creating the elongated recurrent paths. [10]: 318–323