Glossopharyngeal Nerve Supply: Muscles & Taste Buds - Anatomy & Function

The glossopharyngeal nerve supplies the following structures:

- Muscles of the pharynx: The glossopharyngeal nerve supplies the muscles of the pharynx, which are responsible for swallowing.

- Muscles of the soft palate: The glossopharyngeal nerve supplies the muscles of the soft palate, which are responsible for closing off the back of the mouth during swallowing.

- Taste buds on the posterior third of the tongue: The glossopharyngeal nerve supplies the taste buds on the posterior third of the tongue, which are responsible for tasting bitter, sour, and salty flavors.

- Carotid body: The glossopharyngeal nerve supplies the carotid body, which is a chemoreceptor that monitors the levels of oxygen, carbon dioxide, and pH in the blood.

- Carotid sinus: The glossopharyngeal nerve supplies the carotid sinus, which is a baroreceptor that monitors the blood pressure in the carotid artery.