Joint Development - Temporomandibular Joint: Difference between revisions
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* '''Analysis by Light, Scanning, and Transmission Microscopy of the Intima Synovial of the Temporomandibular Joint of Human Fetuses during the Development'''<ref name="PMID24527214"><pubmed>24527214</pubmed></ref> "To characterize morphologically and ultrastructurally using light microscopy, the scanning electron microscopy and transmission electron microscopy the intima synovial of the temporomandibular joint (TMJ) of human fetuses between the 10th and the 38th week of development. Materials and Methods. The TMJ was dissected bilaterally in 37 human fetuses belonging to the Institute of Embryology of the University Complutense of Madrid and of the Federal University of São Paulo. Results. The outcome by light microscopy showed the morphology of the TMJ and that the formation of inferior joint cavity precedes the superior joint cavity and the presence of blood vessels in the synovial. Conclusion. By scanning and transmission electron microscopy we observed the presence of two well-defined cell types in the intima layer of synovial of the TMJ of human fetuses, macrophage-like type A cell and fibroblast-like type B cell, and the presence of the a third cell type, defined by the name of intermediate lining cell in the intima layer of the synovial." | * '''Analysis by Light, Scanning, and Transmission Microscopy of the Intima Synovial of the Temporomandibular Joint of Human Fetuses during the Development'''<ref name="PMID24527214"><pubmed>24527214</pubmed>| [http://www.hindawi.com/journals/ari/2014/732720 Anat Res Int.]</ref> "To characterize morphologically and ultrastructurally using light microscopy, the scanning electron microscopy and transmission electron microscopy the intima synovial of the temporomandibular joint (TMJ) of human fetuses between the 10th and the 38th week of development. Materials and Methods. The TMJ was dissected bilaterally in 37 human fetuses belonging to the Institute of Embryology of the University Complutense of Madrid and of the Federal University of São Paulo. Results. The outcome by light microscopy showed the morphology of the TMJ and that the formation of inferior joint cavity precedes the superior joint cavity and the presence of blood vessels in the synovial. Conclusion. By scanning and transmission electron microscopy we observed the presence of two well-defined cell types in the intima layer of synovial of the TMJ of human fetuses, macrophage-like type A cell and fibroblast-like type B cell, and the presence of the a third cell type, defined by the name of intermediate lining cell in the intima layer of the synovial." | ||
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==Fetal Development== | ==Fetal Development== | ||
These images are from a recent article on fetal human TMJ development.<ref name="PMID24527214"/> Weeks are {{GA}}. | |||
{| | {| | ||
| [[File:Fetal temporomandibular joint 01.jpg| | | [[File:Fetal temporomandibular joint 01.jpg|400px]] | ||
Week 10 | Week 10 | ||
| [[File:Fetal temporomandibular joint 02.jpg| | | [[File:Fetal temporomandibular joint 02.jpg|400px]] | ||
Week 12 | Week 12 | ||
|- | |||
| [[File:Fetal temporomandibular joint 03.jpg|400px]] | |||
Week 14 | |||
| [[File:Fetal temporomandibular joint 04.jpg|400px]] | |||
Week 18 | |||
|- | |||
| [[File:Fetal temporomandibular joint 05.jpg|400px]] | |||
Week 28 | |||
| [[:File:Fetal temporomandibular joint 06.jpg|400px]] | |||
Week 32 | |||
|} | |} | ||
[[:File:Fetal temporomandibular joint 01.jpg|Image - Week 10]] | [[:File:Fetal temporomandibular joint 02.jpg|Image - Week 12]] | [[:File:Fetal temporomandibular joint 03.jpg|Image - Week 14]] | [[:File:Fetal temporomandibular joint 04.jpg|Image - Week 18]] | [[:File:Fetal temporomandibular joint 05.jpg|Image - Week 28]] | [[:File:Fetal temporomandibular joint 06.jpg|Image - Week 32]] | | [[:File:Fetal temporomandibular joint 01.jpg|Image - Week 10]] | [[:File:Fetal temporomandibular joint 02.jpg|Image - Week 12]] | [[:File:Fetal temporomandibular joint 03.jpg|Image - Week 14]] | [[:File:Fetal temporomandibular joint 04.jpg|Image - Week 18]] | [[:File:Fetal temporomandibular joint 05.jpg|Image - Week 28]] | [[:File:Fetal temporomandibular joint 06.jpg|Image - Week 32]] | |
Revision as of 11:37, 3 July 2015
Embryology - 24 Apr 2024 Expand to Translate |
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Introduction
The Temporomandibular Joint (TMJ) is a bilateral synovial articulation between the ends of the mandible (lower jaw) and temporal bone ( part of the skull).
In the adult, the region where two skeletal bones meet and articulate is called a "joint", that are classified based upon their: anatomical structure, mobility and shape.
In the embryo, the majority of the vertebrate skeleton is initially formed as a cartilage template, that is later replaced by bone except at the interface between two adjacent bones, leaving in the adult a layer of cartilage in this region. The musculoskeletal system consists of skeletal muscle, bone, and cartilage and is mainly mesoderm in origin with some neural crest contribution.
Joint Links: joint | synovial joint | temporomandibular joint | musculoskeletal | cartilage | Category:Joint | ||
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Some Recent Findings
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More recent papers |
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This table allows an automated computer search of the external PubMed database using the listed "Search term" text link.
More? References | Discussion Page | Journal Searches | 2019 References | 2020 References Search term: Temporomandibular Joint Development <pubmed limit=5>Temporomandibular Joint Development</pubmed> |
Fetal Development
These images are from a recent article on fetal human TMJ development.[1] Weeks are GA.
Week 10 |
Week 12 |
Week 14 |
Week 18 |
Week 28 |
400px
Week 32 |
Image - Week 10 | Image - Week 12 | Image - Week 14 | Image - Week 18 | Image - Week 28 | Image - Week 32 |
Joint Types
Classification
- Fibrous (synarthrodial) - immoveable joints found in cranial vault and teeth
- Cartilagenous (synchondroses and sympheses) - partially moveable joints
- Synovial (diarthrosis) - freely moveable joints are the most common found in the skeleton
Movement
- Hinge - (elbow and knee) Flexion/Extension
- Pivot - (neck, atlas and axis bones) Rotation of one bone around another
- Ball and Socket - (shoulder and hip)
- Saddle - (thumb)
- Condyloid - (wrist joints)
- Gliding - (intercarpal joints) Gliding movements
Temporomandibular Abnormalities
References
- ↑ 1.0 1.1 <pubmed>24527214</pubmed>| Anat Res Int.
Online Textbooks
Developmental Biology Gilbert, Scott F. Sunderland (MA): Sinauer Associates, Inc. ; c2000 Forming the joints
Reviews
<pubmed></pubmed>
Articles
<pubmed></pubmed>
Search PubMed
S Search Pubmed: Joint Development
Additional Images
External Links
External Links Notice - The dynamic nature of the internet may mean that some of these listed links may no longer function. If the link no longer works search the web with the link text or name. Links to any external commercial sites are provided for information purposes only and should never be considered an endorsement. UNSW Embryology is provided as an educational resource with no clinical information or commercial affiliation.
Glossary Links
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Cite this page: Hill, M.A. (2024, April 24) Embryology Joint Development - Temporomandibular Joint. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Joint_Development_-_Temporomandibular_Joint
- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G