What is the glossopharyngeal nerve function?
Structure and Function The glossopharyngeal nerve carries sensory, efferent motor, and parasympathetic fibers. Its branches consist of tympanic, tonsillar, stylopharyngeal, carotid sinus nerve, branches to the tongue, lingual branches, and a communicating branch to cranial nerve X (vagus nerve).
What is the meaning of glossopharyngeal nerve?
Reviewed on 3/29/2021. Glossopharyngeal nerve: The ninth cranial nerve, which supplies the tongue, throat, and one of the salivary glands (the parotid gland). Problems with the glossopharyngeal nerve result in difficulties with tasting and ‘swallowing.
What is the meaning of Glossopharyngeal?
1 : of or relating to both tongue and pharynx.
What is the function of the glossopharyngeal nerve quizlet?
It provides sensory information about taste, sensation to the tongue and pharynx and information from chemo/baro-receptors in the carotid artery.
What is cranial nerve VII?
A nerve that runs from the brainstem, through openings in the skull, to the face and tongue. The seventh cranial nerve sends information between the brain and the muscles used in facial expression (such as smiling and frowning), some muscles in the jaw, and the muscles of a small bone in the middle ear.
What is the lingual nerve?
The lingual nerve is one of the sensory branches of the mandibular division of the trigeminal nerve. [5] It contains general somatic afferent nerve fibers and, after chorda tympani joins it, also carries general visceral efferent nerve fibers and special visceral afferent fibers.
What does CN 9 innervate?
ArticleMedia. The glossopharyngeal nerve (ninth cranial nerve, CN IX, Latin: nervus glossopharyngeus) is a mixed cranial nerve. The glossopharyngeal nerve provides motor innervation to the stylopharyngeus muscle and the superior constrictor pharyngeal muscle.
What is Apharynx?
(FAYR-inx) The hollow tube inside the neck that starts behind the nose and ends at the top of the trachea (windpipe) and esophagus (the tube that goes to the stomach). The pharynx is about 5 inches long, depending on body size. Also called throat.
What is the suffix in the term Glossopharyngeal?
The prefix “glosso-” means relating to the tongue, and the suffix “-pharyngeal” means relating to the pharynx, or throat. Therefore, the glossopharyngeal nerve, also known as the ninth cranial nerve, has a role in both sensation and movement of the tongue and throat.
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.
Which type of basic reflex includes the pupillary response and accommodation?
The accommodation reflex (or accommodation-convergence reflex) is a reflex action of the eye, in response to focusing on a near object, then looking at a distant object (and vice versa), comprising coordinated changes in vergence, lens shape (accommodation) and pupil size.
What is the function of Abducens nerve?
The abducens nerve functions to innervate the ipsilateral lateral rectus muscle and partially innervate the contralateral medial rectus muscle (at the level of the nucleus – via the medial longitudinal fasciculus).
What is the meaning of the word glossopharyngeal?
glossopharyngeal nerve. noun. glos·so·pha·ryn·geal nerve | \\ˌglä-sō-ˌfer-ən-ˈjē-əl-, ˌglȯ-, -fə-ˈrin-j(ē-)əl-\\. : either of the ninth pair of cranial nerves that are mixed nerves and supply chiefly the pharynx, posterior tongue, and parotid gland. — called also glossopharyngeal.
Where is the glossopharyngeal nerve located in the brain?
e The glossopharyngeal nerve (/ ˌɡlɒsoʊfəˈrɪn (d) ʒiəl, – ˌfærənˈdʒiːəl /), known as the ninth cranial nerve (CN IX), is a mixed nerve that carries afferent sensory and efferent motor information. It exits the brainstem out from the sides of the upper medulla, just anterior (closer to the nose) to the vagus nerve.
Is it possible to remove the glossopharyngeal nerve?
In severe cases, surgery may be necessary to remove pressure from the glossopharyngeal nerve. This may involve removing the cause of the pressure on the nerve or severing the nerve so that it no longer causes pain. [1]
How is the glossopharyngeal nerve related to the gag reflex?
Clinical Relevance – Gag Reflex. The glossopharyngeal nerve supplies sensory innervation to the oropharynx, and thus carries the afferent information for the gag reflex. When a foreign object touches the back of the mouth, this stimulates CNIX, beginning the reflex.