The glossopharyngeal nerve is the ninth (IX) of twelve pairs of cranial nerves (24 nerves total). It exits the brainstem out from the sides of the upper medulla, just rostral (closer to the nose) to the vagus nerve. The motor division of the glossopharyngeal nerve is derived from the basal plate of the embryonic medulla oblongata, while the sensory division originates from the cranial neural crest.
Read more about Glossopharyngeal Nerve: Functions, Glossopharyngeal Overview, Overview of Branchial Motor Component, Overview of Visceral Motor Component, Overview of Visceral Sensory Component, Overview of General Sensory Component, Overview of Special Sensory Component, Brainstem Connections, Path, Branches, Testing The Glossopharyngeal Nerve, Additional Images
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“There must be some nerve and heroism in our love, as of a winter morning.”
—Henry David Thoreau (1817–1862)