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{{Infobox Nerve |
{{Infobox nerve
Name = {{PAGENAME}} |
| Name = Submandibular ganglion
Latin = ganglion submandibulare |
| Latin = ganglion submandibulare
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| Image = Gray778.png
GraySubject = 200 |
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| Caption = Distribution of the [[Maxillary nerve|maxillary]] and [[mandibular nerve]]s, and the submaxillary ganglion. (Submandibular ganglion visible at bottom left, but not labeled.)
GrayPage = 898 |
Image = Gray778.png |
| Image2 = Gray842.png
⚫
| Caption2 = Parasympathetic connections of the submaxillary and superior cervical ganglia. (Submaxillary ganglion labeled at center right.)
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Caption = Distribution of the [[Maxillary nerve|maxillary]] and [[mandibular nerve]]s, and the submaxillary ganglion. (Submandibular ganglion visible at bottom left, but not labeled.) |
⚫
| Innervates = [[Submandibular gland]], [[sublingual gland]]
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Image2 = Gray842.png |
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| BranchFrom =
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Caption2 = Parasympathetic connections of the submaxillary and superior cervical ganglia. (Submaxillary ganglion labeled at center right.) |
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| BranchTo =
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Innervates = [[submandibular gland]], [[sublingual gland]] |
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BranchFrom = |
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BranchTo = |
MeshName = |
MeshNumber = |
DorlandsPre = g_02 |
DorlandsSuf = 12385004 |
}}
}}
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]]).
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]]).

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


==Location and relations==
==Location and relations==
The submandibular ganglion is small and [[wikt:fusiform|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 submandibular ganglion is small and [[wikt:fusiform|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 V<sub>3</sub>). 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.
The ganglion 'hangs' by two nerve filaments from the lower border of the [[lingual nerve]] (itself a branch of the [[mandibular nerve]], CN V<sub>3</sub>). 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.
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==Fibers==
==Fibers==
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:
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:
*Sympathetic fibers from the [[external carotid plexus]], via the [[facial nerve]] and its branches. These do not synapse in this ganglion.
* Sympathetic fibers from the [[external carotid plexus]], via the [[facial nerve]] and its branches. These do not synapse in this ganglion.
*[[Preganglionic]] parasympathetic fibers from the [[superior salivatory nucleus]] of the [[medulla oblongata]], via the [[chorda tympani]] and [[lingual nerve]], which synapse at the origin of:
* [[Preganglionic]] parasympathetic fibers from the [[superior salivatory nucleus]] of the [[Pons]], via the [[chorda tympani]] and [[lingual nerve]], which synapse at this ganglion.
*[[Postganglionic]] parasympathetic fibers to the [[oral mucosa]] and the [[submandibular gland|submandibular]] and [[sublingual gland|sublingual]] salivary glands.They are secretomotor to these glands.
* [[Postganglionic]] parasympathetic fibers to the [[oral mucosa]] and the [[submandibular gland|submandibular]] and [[sublingual gland|sublingual]] salivary glands. They are secretomotor to these glands. Some of the postganglionic fibers reach the sublingual gland after they re-enter the [[lingual nerve]].<ref>{{cite book |chapter-url=https://books.google.com/books?id=gCHswHawZdcC&pg=PA395 |title=Essentials of Anatomy |chapter=The Facial Nerve |page=395 |author=I. B. Singh |year=2008 |publisher=Jaypee Brothers Publishers |isbn=9788184484618}}</ref>


==Additional images==
==Additional images==
<gallery>
<gallery>
Image:Gray782.png|Mandibular division of trifacial nerve, seen from the middle line.
File:Gray782.png|Mandibular division of trifacial nerve, seen from the middle line.
Image:Gray839.png|Diagram of efferent sympathetic nervous system.
File:Gray839.png|Diagram of efferent sympathetic nervous system.
</gallery>
</gallery>

==References==
{{Reflist}}


==External links==
==External links==
* {{SUNYAnatomyFigs|27|03|10}}
* {{SUNYAnatomyFigs|27|03|10}}
* {{NormanAnatomy|cranialnerves}} ({{NormanAnatomyFig|V}}, {{NormanAnatomyFig|VII}})
* {{NormanAnatomy|cranialnerves}} ({{NormanAnatomyFig|V}}, {{NormanAnatomyFig|VII}})
* {{UMichAnatomyModule|head_autonomics_module/autonomics_09|Autonomics of the Head and Neck - Page 9 of 14}}
* {{UMichAnatomyModule|head_autonomics_module/autonomics_09|Autonomics of the Head and Neck – Page 9 of 14}}
* {{eMedicineDictionary|Submandibular+ganglion}}


{{neuroscience-stub}}
{{Cranial nerves}}
{{Cranial nerves}}
{{Trigeminal nerve}}
{{Trigeminal nerve}}
{{Autonomic}}
{{Autonomic}}
{{Authority control}}

[[Category:Autonomic ganglia of the head and neck]]
[[Category:Autonomic ganglia of the head and neck]]
[[Category:Mandibular nerve]]
[[Category:Mandibular nerve]]
[[Category:Parasympathetic ganglia]]
[[Category:Otorhinolaryngology]]
[[Category:Nervous system]]

Latest revision as of 16:31, 8 May 2024

Submandibular ganglion
Distribution of the maxillary and mandibular nerves, and the submaxillary ganglion. (Submandibular ganglion visible at bottom left, but not labeled.)
Parasympathetic connections of the submaxillary and superior cervical ganglia. (Submaxillary ganglion labeled at center right.)
Details
InnervatesSubmandibular gland, sublingual gland
Identifiers
Latinganglion submandibulare
TA98A14.3.02.009
TA26667
FMA6966
Anatomical terms of neuroanatomy

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).

Location and relations

[edit]

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.

Fibers

[edit]

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 images

[edit]
  • Mandibular division of trifacial nerve, seen from the middle line.
    Mandibular division of trifacial nerve, seen from the middle line.
  • Diagram of efferent sympathetic nervous system.
    Diagram of efferent sympathetic nervous system.

References

[edit]
  1. ^ I. B. Singh (2008). "The Facial Nerve". Essentials of Anatomy. Jaypee Brothers Publishers. p. 395. ISBN 9788184484618.
[edit]
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