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Ontologies for mouse anatomy and development
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lingual ganglion (?) #42

Closed cmungall closed 9 years ago

cmungall commented 14 years ago

Potential new term of lingual ganglion, perhaps under parasympathetic ganglion[MA:0002469] and as a sibling of submandibular ganglion[MA:0002470]? J:157532 describes this structure in mouse, but I cannot find any additional resources that mention it specifically in mouse.

Original comment by: cindyJax

Original Ticket: obo/mouse-anatomy-requests/26

cmungall commented 14 years ago

"lingual ganglion" reference notes

Original comment by: tfhayamizu

cmungall commented 14 years ago

"lingual ganglion" notes / summary

Original comment by: tfhayamizu

cmungall commented 14 years ago

This was complicated, not so much for the question of whether the structure exists in the mouse, but due to confusing / conflicting terminology used in the literature over the years. For this evaluation, I traced back as far as 1829 (see reference notes - pdf attached), with the most notable papers published in 1890 (Langley) and 1897 (Huber). (Note that online access to some very old textbooks and atlases was incredible!) The results of my analysis are summarized in my notes (see diagram at the bottom of the attached pdf).

There appears to be at least two distinct (or distinct groups of) ganglia in the submandibular region): (A) the submandibular ganglion (synonyms include: submaxillary ganglion, maxillary ganglion and lingual ganglion), located in the hilus of the submandibular gland (also called the submaxillary gland); and (B) the sublingual ganglion, which has also (incorrectly?) been called the "sub-maxillary ganglion."

I will be adding "sublingual ganglion" to the MA as a sub-term of "parasympathetic ganglion' [MA:0002469] as a sibling of "submandibular ganglion" {MA:0002470]. I will also be adding synonyms for "submandibular ganglion," including "lingual ganglion."

The problem with the structure called "lingual ganglion" in J:157532 is that it eppears to be distinct from the "submandibular ganglion" and, thus, (1) may be a just part of the "submandibular ganglion" (an idea supported by some references) or (2) actually be what has been called the "sublingual ganglion." I have not tried to distinguish between these possibilities for this paper, but it may be possible to figure this out based on the location and nerve fiber connections that have been reported in the literature.

Original comment by: tfhayamizu

cmungall commented 14 years ago

Original comment by: tfhayamizu

cmungall commented 14 years ago

A new term, "sublingual ganglion" (MA:0002982), has been added to the MA.

Note that I feel that the literature supports the idea that there are, in fact, at least 2 distinct ganglia in the submandibular region in the mouse, as well as for the human, even though the nomenclature may not be clear.

Original comment by: tfhayamizu

cmungall commented 14 years ago

Original comment by: tfhayamizu