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The pterygopalatine ganglion (aka Meckel's ganglion, nasal ganglion, or sphenopalatine ganglion) is a parasympathetic ganglion in the pterygopalatine fossa.It is one of four parasympathetic ganglia of the head and neck, (the others being the submandibular, otic, and ciliary ganglion).
The nasopalatine nerve (also long sphenopalatine nerve [1]: 496 ) is a nerve of the head. It is a sensory branch of the maxillary nerve (CN V 2) that passes through the pterygopalatine ganglion (without synapsing) and then through the sphenopalatine foramen to enter the nasal cavity, and finally out of the nasal cavity through the incisive canal and then the incisive fossa to enter the hard ...
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The two pterygopalatine nerves (or sphenopalatine branches) descend to the pterygopalatine ganglion. [1] Although it is closely related to the pterygopalatine ganglion, it is still considered a branch of the maxillary nerve and does not synapse in the ganglion. [2] It is found in the pterygopalatine fossa. [3]
Most of their fibers are derived from the sphenopalatine branches of the maxillary nerve. In older texts, they are usually categorized as three in number: anterior, middle, and posterior. (In newer texts, and in Terminologia anatomica, they are broken down into "greater palatine nerve" and "lesser palatine nerve".)
The greater palatine nerve is a branch of the pterygopalatine ganglion. This nerve is also referred to as the anterior palatine nerve , due to its location anterior to the lesser palatine nerve . It carries both general sensory fibres from the maxillary nerve , and parasympathetic fibers from the nerve of the pterygoid canal .
The greater petrosal nerve also conveys some special sensory nerve fibres which carry gustatory (taste) sensory information from the palate [1]: 22 that are relayed to the pterygopalatine ganglion by the lesser palatine nerves and are in turn conveyed to the geniculate ganglion by the greater petrosal nerve to synapse in the ganglion.
the pterygopalatine ganglion suspended by nerve roots from the maxillary nerve the terminal third of the maxillary artery the maxillary nerve (CN V 2 , the second division of the trigeminal nerve), with which is the nerve of the pterygoid canal , a combination of the greater petrosal nerve (preganglionic parasympathetic ) and the deep petrosal ...