What innervates the pharyngeal plexus?
Instead, they are innervated by the recurrent laryngeal nerve and the external branch of the superior laryngeal nerve, branches of the vagus. ^ "pharyngeal plexus (anatomy)".
Where does the pharyngeal nerve enter the larynx?
The pharyngeal nerve enters the pharynx and divides into the pharyngeal plexus to supply the muscles noted previously. The superior laryngeal nerve descends and divides to reach the cricothyroid and the inferior constrictor muscles.
What is the plexus of the pharynx responsible for?
The plexus lies along the middle pharyngeal constrictor muscle and is responsible for sensory and motor innervation. SENSORY INNERVATION The three regions of the pharynx each receive a unique cranial nerve supply. Nasopharynx.
What is the major motor drive to the pharyngeal plexus?
Motor fibers of the pharyngeal branch of the vagus originating from the cranial part of the accessory nerve are described as acting as the major motor drive to the pharyngeal plexus 3,9,10 .
What nerves are in the pharyngeal plexus?
The neural contributions of the cranial nerves IX, X, and superior sympathetic ganglion intertwine to form the pharyngeal plexus that can be injured during ACDF procedures.
What is the pharyngeal nerve?
The pharyngeal nerve is a small branch of the maxillary division of the trigeminal nerve and contributes to the pterygopalatine ganglion.
What nerve innervates the pharyngeal muscles?
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.
Which of the following cranial nerves provides the sensory root of the pharyngeal plexus?
CN IX - pharyngeal branches of glossopharyngeal nerve - sensory.
Where does pharyngeal nerve come from?
The pharyngeal nerve is a small branch of the maxillary nerve, arising from the posterior part of the pterygopalatine ganglion.
Where is the pharyngeal nerve?
The pharyngeal nerve branches from the vagus nerve within the carotid sheath just after the vagus exits the skull base through the jugular foramen (Hermanowicz, 2007; Monkhouse, 2006).
What cranial nerve Innervates pharynx?
cranial nerve IXMost 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 middle pharyngeal constrictor?
the vagus nerveSimilarly 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?
Inferior pharyngeal constrictorOriginThyropharyngeal part: Oblique line of thyroid cartilage Cricopharyngeal part: Cricoid cartilageInnervationBoth parts: Branches of pharyngeal plexus (CN X) Cricopharyngeal part: also receives branches of external and/or recurrent laryngeal branches of vagus nerve (CN X)3 more rows
Where is the pharyngeal venous plexus?
pharynxThe 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 glossopharyngeal nerve innervate?
As stated above, the glossopharyngeal nerve provides motor innervation to the stylopharyngeus muscle, which is responsible for elevating the pharynx and larynx.
What type of nerve is the glossopharyngeal nerve?
The glossopharyngeal nerve is the ninth set of 12 cranial nerves (CN IX). It provides motor, parasympathetic and sensory information to your mouth and throat. Among its many functions, the nerve helps raise part of your throat, enabling swallowing.