Location and Size
- Located within the jugular foramen
- Exits the skull
- Smaller than the inferior ganglion
- Superior to the inferior ganglion
Sensory Innervation
- Provides sensory innervation to the middle ear
- Provides sensory innervation to the internal surface of the tympanic membrane
- Axons branch from the glossopharyngeal nerve
- Forms the tympanic nerve
- Travels through the inferior tympanic canaliculus
Tympanic Plexus
- Sensory axons provide innervation of the middle ear
- Sensory axons provide innervation of the internal surface of the tympanic membrane
- Parasympathetic axons branch from the tympanic plexus
- Lesser petrosal nerve
- Otic ganglion
Central Processes
- Neurons in the superior ganglion synapse in the spinal trigeminal nucleus
- Glossopharyngeal nerve
- Synaptic connections in the spinal trigeminal nucleus
- Central processes of the neurons
- Glossopharyngeal nerve and spinal trigeminal nucleus connection
References
- Rubin, Michael (2017). Netters Concise Neuroanatomy
- Safdieh, Joseph E., Netter, Frank H. (Frank Henry), 1906-1991 (Updateded.). Philadelphia, PA: Elsevier. pp.253–258. ISBN9780323480918. OCLC946698976.
- Neuroanatomy article stub
- Retrieved from https://en.wikipedia.org/w/index.php?title=Superior_ganglion_of_glossopharyngeal_nerve&oldid=1182594706
- Categories: Somatic ganglia of the head and neck, Glossopharyngeal nerve, Neuroanatomy stubs
The superior ganglion of the glossopharyngeal nerve is a sensory ganglion of the peripheral nervous system. It is located within the jugular foramen where the glossopharyngeal nerve exits the skull. It is smaller than and superior to the inferior ganglion of the glossopharyngeal nerve.
Superior ganglion of glossopharyngeal nerve | |
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Details | |
Identifiers | |
Latin | ganglion superius nervi glossopharyngei |
TA98 | A14.2.01.136 |
TA2 | 6321 |
FMA | 53474 |
Anatomical terms of neuroanatomy |
The neurons in the superior ganglion of the glossopharyngeal nerve provide sensory innervation to the middle ear and the internal surface of the tympanic membrane. The axons of these neurons branch from the glossopharyngeal nerve at the level of the inferior ganglion and form the tympanic nerve along with the preganglionic parasympathetic axons from the inferior salivatory nucleus. The tympanic nerve then travels through the inferior tympanic canaliculus to the tympanic cavity forming the tympanic plexus. From here, the sensory axons provide innervation of the middle ear and internal surface of the tympanic membrane. The parasympathetic axons branch from the tympanic plexus as the lesser petrosal nerve on their way to the otic ganglion.
The central processes of the neurons in the superior ganglion of the glossopharyngeal nerve synapse in the spinal trigeminal nucleus.