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The pharyngeal nerve is a small branch of the maxillary nerve (CN V 2), [1]: 496 arising at the posterior part of the pterygopalatine ganglion. It passes through the palatovaginal canal [ 1 ] : 370, 496 with the pharyngeal branch of the maxillary artery .
The inferior pharyngeal constrictor muscle is a skeletal muscle of the neck. It is the thickest of the three outer pharyngeal muscles. It arises from the sides of the cricoid cartilage and the thyroid cartilage. It is supplied by the vagus nerve (CN X). It is active during swallowing, and partially during breathing and speech.
The pharyngeal branch of the vagus nerve is the principal motor nerve of the pharynx. It represents the motor component of the pharyngeal plexus of vagus nerve and ultimately provides motor innervation to most of the muscles of the soft palate (all but the tensor veli palatini muscle), and of the pharynx (all but the stylopharyngeus muscle). [1]
The pharyngeal plexus is a nerve plexus located upon the outer surface of the pharynx. It contains a motor component (derived from the vagus nerve (cranial nerve X) ), a sensory component (derived from the glossopharyngeal nerve (cranial nerve IX) ), and sympathetic component (derived from the superior cervical ganglion ).
The posterior pharyngeal part is the part closest to the throat, roughly one-third of its length. These parts differ in terms of their embryological development and nerve supply. The anterior tongue is, at its apex, thin and narrow. It is directed forward against the lingual surfaces of the lower incisor teeth.
Pharyngeal branch can refer to any one of several different structures near the pharynx: Nerves Pharyngeal branch of vagus nerve - "ramus pharyngeus nervi vagi" Pharyngeal branches of recurrent laryngeal nerve - "rami pharyngei nervi laryngei recurrentis" Pharyngeal branches of glossopharyngeal nerve - "rami pharyngei nervi glossopharyngei"
The laryngopharynx includes three major sites: the pyriform sinus, postcricoid area, and the posterior pharyngeal wall. Like the oropharynx above it, the laryngopharynx serves as a passageway for food and air and is lined with a stratified squamous epithelium. It is innervated by the pharyngeal plexus and by the recurrent laryngeal nerve.
Its parasympathetic root is derived from the nervus intermedius (a part of the facial nerve) through the greater petrosal nerve.. In the pterygopalatine ganglion, the preganglionic parasympathetic fibers from the greater petrosal branch of the facial nerve synapse with neurons whose postganglionic axons, vasodilator, and secretory fibers are distributed with the deep branches of the trigeminal ...