PLEXUS PHARYNGEUS ASCENDENS Meaning and
Definition
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The term "plexus pharyngeus ascendens" refers to the ascending pharyngeal plexus in human anatomy. It is a network of nerves that encompasses the pharynx, which is a muscular tube responsible for the transportation of food and the passage of air from the mouth to the esophagus and the larynx. The plexus pharyngeus ascendens is located on the lateral walls of the pharynx, specifically in the posterior region.
This plexus is formed by branches of the glossopharyngeal nerve (cranial nerve IX) and vagus nerve (cranial nerve X). These nerves give rise to fibers that innervate the muscles of the pharynx, allowing for voluntary swallowing and conversational speech.
The plexus pharyngeus ascendens also provides sensory innervation to the mucous membranes of the pharynx, which contributes to the sensations of touch, temperature, and pain in this region. This sensory input is crucial for the initiation and regulation of swallowing reflexes and the protection of the airway during swallowing.
As a component of the pharyngeal plexus, the plexus pharyngeus ascendens plays a vital role in maintaining the proper functioning of the pharynx and its associated muscles. Dysfunction or damage to this plexus can lead to difficulties in swallowing, sensation, and vocalization.
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Ascending pharyngeal p., a sympathetic p. on the artery of the same name formed of fibers from the superior cervical ganglion.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for PLEXUS PHARYNGEUS ASCENDENS
