The pharyngeal plexus sends some branches between the middle and inferior constrictors and other branches between the superior and middle constrictors 4,6. It is formed by the pharyngeal branches from the vagus and glossopharyngeal nerves and the cervical sympathetic 3–7.
What are pharyngeal nerves?
The pharyngeal nerve is a small branch of the maxillary division of the trigeminal nerve and contributes to the pterygopalatine ganglion.
Which nerves supply the pharynx?
Most sensory innervation of the pharynx is derived from the glossopharyngeal nerve, specifically the pharyngeal and tonsillar branches (cranial nerve IX), except for the anterior part of the nasopharynx, which is innervated by a branch of the maxillary nerve (cranial nerve V2) called the pharyngeal nerve.
What nerve innervates the muscles of the pharynx?
The pharyngeal muscles receive innervation from the vagus and glossopharyngeal nerve to work in sync to propel food from the oral cavity into the esophagus.
What does the pharyngeal plexus supply?
The pharyngeal plexus lies on the posterolateral wall of the pharynx, mainly over the middle pharyngeal constrictor and is the main motor and sensory nerve supply to the muscles of the pharynx and soft palate and acts to coordinate swallowing and speech 1–7.
Where is the pharyngeal nerve?
Gross anatomy It leaves the fossa posteroinferiorly through the palatovaginal canal with the pharyngeal branch of the maxillary artery. It emerges in the posterosuperior aspect of the nasal cavity where it supplies the mucosa of the superior nasopharynx.
What is the pharyngeal branch of the vagus nerve?
Anatomical terms of neuroanatomy The pharyngeal branch of the vagus nerve, the principal motor nerve of the pharynx, arises from the upper part of the ganglion nodosum, and consists principally of filaments from the cranial portion of the accessory nerve.
Where is the pharyngeal venous plexus?
The pharyngeal plexus (venous) is a network of veins beginning on the outer surface of the pharynx, and, after receiving some posterior meningeal veins and the vein of the pterygoid canal, end in the internal jugular.
What does the pharyngeal branch of the vagus nerve do?
The pharyngeal branch of the vagus also innervates most of the palatine muscles, including the salpingopharyngeus, levator veli palatini, palatoglossus muscle, palatopharyngeus muscle, and musculus uvulae (Hansen, 2010).
What is a plexus of the vagus nerve?
The esophageal plexus (oesophageal plexus in British-English) is formed by nerve fibers from two sources, branches of the vagus nerve, and visceral branches of the sympathetic trunk. The esophageal plexus and the cardiac plexus contain the same types of fibers and are both considered thoracic autonomic plexus.
What nerve Innervates the middle pharyngeal constrictor?
Similarly to the superior and inferior pharyngeal constrictor muscles, the middle pharyngeal constrictor is innervated by a branch of the vagus nerve through the pharyngeal plexus.
What nerve Innervates the inferior pharyngeal constrictor?
Similarly to the superior and middle pharyngeal constrictor muscles, it is innervated by the vagus nerve (cranial nerve X), specifically, by branches from the pharyngeal plexus and by neuronal branches from the recurrent laryngeal nerve.
What does C2 nerve innervate?
C1, C2, and C3 (the first three cervical nerves) help control the head and neck, including movements forward, backward, and to the sides. The C2 dermatome handles sensation for the upper part of the head, and the C3 dermatome covers the side of the face and back of the head. (C1 does not have a dermatome.)
What is Pneumogastric nerve?
Definitions of pneumogastric nerve. a mixed nerve that supplies the pharynx and larynx and lungs and heart and esophagus and stomach and most of the abdominal viscera. synonyms: nervus vagus, pneumogastric, tenth cranial nerve, vagus, vagus nerve, wandering nerve.
What nerve Innervates the throat?
The vagus nerve is the large nerve that supplies the many branches of nerves that innervate the larynx.
What are the cranial nerve?
Your cranial nerves are pairs of nerves that connect your brain to different parts of your head, neck, and trunk. There are 12 of them, each named for their function or structure. Each nerve also has a corresponding Roman numeral between I and XII.