The canine jaw-ear connection: The malleomandibular and tympanomandibular ligaments
In the human, two ligaments derived from the first embryonic pharyngeal (branchial) arch that unite the mandible and temporomandibular joint (TMJ) with the middle ear have been identified as the discomalleolar ligament (DML) and sphenomandibular ligament (SML), also known as the malleomandibular lig...
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ftlouisianastuir:oai:digitalcommons.lsu.edu:vetmed_pubs-2600 2023-06-11T04:11:18+02:00 The canine jaw-ear connection: The malleomandibular and tympanomandibular ligaments Stevens-Sparks, Cathryn Strain, George M 2014-05-01T07:00:00Z https://digitalcommons.lsu.edu/vetmed_pubs/1596 https://doi.org/10.1002/ar.22882 unknown LSU Digital Commons https://digitalcommons.lsu.edu/vetmed_pubs/1596 doi:10.1002/ar.22882 Faculty Publications dog malleomandibular ligament sphenomandibular ligament tympanomandibular ligament text 2014 ftlouisianastuir https://doi.org/10.1002/ar.22882 2023-05-28T18:49:38Z In the human, two ligaments derived from the first embryonic pharyngeal (branchial) arch that unite the mandible and temporomandibular joint (TMJ) with the middle ear have been identified as the discomalleolar ligament (DML) and sphenomandibular ligament (SML), also known as the malleomandibular ligament (MML), anterior ligament of the malleus (AML), and tympanomandibular ligament (TML). Neither of these structures has been previously described in the dog. The homologue of the human sphenomandibular ligament (SML) exists in the dog and is represented as a fibrous remnant of Meckel's cartilage. In the newborn puppy, the ligament is a true malleomandibular ligament (MML), extending from the medial mandible to the rostral process of the malleus with no intermittent attachments. In the adult dog, the ligament is entrapped within a bony passageway, likely due to the development and ossification of the tympanic bulla, making it difficult to grossly view the complete course of the ligament. The majority of the ligamentous fibers attach near the tympanic bulla in the adult dog, thus this portion of the ligament has been named the tympanomandibular ligament (TML). Those fibers of the ligament not attaching near the tympanic bulla appear to continue through a canal, located between the tympanic annulus and the surrounding tympanic bone, to become continuous with a connective tissue sheet within the cavity of the middle ear that has attachments to the malleus and incus. Tension on the adult canine TML did not result in movement of the malleus. Text DML LSU Digital Commons (Louisiana State University) The Anatomical Record 297 5 876 891 |
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dog malleomandibular ligament sphenomandibular ligament tympanomandibular ligament |
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dog malleomandibular ligament sphenomandibular ligament tympanomandibular ligament Stevens-Sparks, Cathryn Strain, George M The canine jaw-ear connection: The malleomandibular and tympanomandibular ligaments |
topic_facet |
dog malleomandibular ligament sphenomandibular ligament tympanomandibular ligament |
description |
In the human, two ligaments derived from the first embryonic pharyngeal (branchial) arch that unite the mandible and temporomandibular joint (TMJ) with the middle ear have been identified as the discomalleolar ligament (DML) and sphenomandibular ligament (SML), also known as the malleomandibular ligament (MML), anterior ligament of the malleus (AML), and tympanomandibular ligament (TML). Neither of these structures has been previously described in the dog. The homologue of the human sphenomandibular ligament (SML) exists in the dog and is represented as a fibrous remnant of Meckel's cartilage. In the newborn puppy, the ligament is a true malleomandibular ligament (MML), extending from the medial mandible to the rostral process of the malleus with no intermittent attachments. In the adult dog, the ligament is entrapped within a bony passageway, likely due to the development and ossification of the tympanic bulla, making it difficult to grossly view the complete course of the ligament. The majority of the ligamentous fibers attach near the tympanic bulla in the adult dog, thus this portion of the ligament has been named the tympanomandibular ligament (TML). Those fibers of the ligament not attaching near the tympanic bulla appear to continue through a canal, located between the tympanic annulus and the surrounding tympanic bone, to become continuous with a connective tissue sheet within the cavity of the middle ear that has attachments to the malleus and incus. Tension on the adult canine TML did not result in movement of the malleus. |
format |
Text |
author |
Stevens-Sparks, Cathryn Strain, George M |
author_facet |
Stevens-Sparks, Cathryn Strain, George M |
author_sort |
Stevens-Sparks, Cathryn |
title |
The canine jaw-ear connection: The malleomandibular and tympanomandibular ligaments |
title_short |
The canine jaw-ear connection: The malleomandibular and tympanomandibular ligaments |
title_full |
The canine jaw-ear connection: The malleomandibular and tympanomandibular ligaments |
title_fullStr |
The canine jaw-ear connection: The malleomandibular and tympanomandibular ligaments |
title_full_unstemmed |
The canine jaw-ear connection: The malleomandibular and tympanomandibular ligaments |
title_sort |
canine jaw-ear connection: the malleomandibular and tympanomandibular ligaments |
publisher |
LSU Digital Commons |
publishDate |
2014 |
url |
https://digitalcommons.lsu.edu/vetmed_pubs/1596 https://doi.org/10.1002/ar.22882 |
genre |
DML |
genre_facet |
DML |
op_source |
Faculty Publications |
op_relation |
https://digitalcommons.lsu.edu/vetmed_pubs/1596 doi:10.1002/ar.22882 |
op_doi |
https://doi.org/10.1002/ar.22882 |
container_title |
The Anatomical Record |
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297 |
container_issue |
5 |
container_start_page |
876 |
op_container_end_page |
891 |
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1768386256699392000 |