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Submandibular ganglion

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Nerve: Submandibular ganglion
Gray778
Distribution of the maxillary and mandibular nerves, and the submaxillary ganglion. (Submandibular ganglion visible at bottom left, but not labeled.)
Gray842
Sympathetic connections of the submaxillary and superior cervical ganglia. (Submaxillary ganglion labeled at center right.)
Latin ganglion submandibulare
Gray's subject #200 898
Innervates submandibular gland, sublingual gland
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MeSH [1]

The submandibular ganglion (or submaxillary ganglion in older texts) is part of the human autonomic nervous system. It is one of four parasympathetic ganglia of the head and neck. (The others are the otic ganglion, pterygopalatine ganglion, and ciliary ganglion).

FunctionEdit

The submandibular ganglion is responsible for innervation of two salivary glands: the submandibular gland and sublingual gland.

Location and relationsEdit

The submandibular ganglion is small and fusiform in shape. It is situated above the deep portion of the submandibular gland, on the hyoglossus muscle, near the posterior border of the mylohyoid muscle.

The ganglion 'hangs' by two nerve filaments from the lower border of the lingual nerve (itself a branch of the mandibular nerve, CN V3). It is suspended from the lingual nerve by two filaments, one anterior and one posterior. Through the posterior of these it receives a branch from the chorda tympani nerve which runs in the sheath of the lingual nerve.

FibersEdit

Like other parasympathetic ganglia of the head and neck, the submandibular ganglion is the site of synapse for parasympathetic fibers and carries other types of nerve fiber that do not synapse in the ganglion. In summary, the fibers carried in the ganglion are:

Additional imagesEdit

External linksEdit


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