![]() ![]() 1 The cricopharyngeus, in turn, which lies on top (at the orifice) of the esophagus, relaxes fully for the easy passage of bolus from the pharynx to the esophagus. The thyropharyngeus propels the food through the pharynx. As the thyropharyngeus contracts the cricopharygeus relaxes, and vice versa. the pharyngeal constrictor muscles, which also functions during. Since the thyropharyngeus is attached to the cricoid and thyroid, it “provides an opportunity for laryngeal elevation.” 1īoth the thyropharyngeus and the cricopharyngeus participate in the proper swallowing of food (bolus) down to the esophagus. upward toward the midline and insert at the inferior borders of our lower ribs (10th. Whereas the cricopharyngeus arises from the cricoid cartilage, the thyropharyngeus starts from the thyroid cartilage (particularly from the thyroid lamina and inferior cornu) and inserts into the posterior pharyngeal raphe 1, thus, the name. In addition, the inferior part of this muscle forms the upper esophageal sphincter. ![]() The function of this muscle is to facilitate by constricting the wall of. The thyropharyngeus is the muscle superior to the cricopharyngeus. inferior pharyngeal constrictor muscle of the pharynx that, together with the pharyngeal constrictors, forms the posterior and lateral walls of laryngopharynx. The inferior pharyngeal constrictor muscle can be supplied by branches from the pharyngeal plexus, the recurrent laryngeal nerve, the external branch of the. The inferior pharyngeal constrictor consists of two muscles: the thyropharyngeus and the cricopharyngeus. ( anatomy) The superior muscle arising from the thyroid cartilage, and, together with cricopharyngeus, constitute the inferior pharyngeal constrictor ![]()
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