Developmental Mechanism - Cell Junctions: Difference between revisions
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File:Desmosome 02.jpg|Desmosome EM | File:Desmosome 02.jpg|Desmosome EM | ||
</gallery> | </gallery> | ||
{{Adhesion Images 01}} | {{Adhesion Images 01}} | ||
{{Mechanism Links}} | {{Mechanism Links}} | ||
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| [[File:Tight junction 01.jpg|300px]] | | [[File:Tight junction 01.jpg|300px]] | ||
Tight | Tight Junction | ||
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Search PubMed: [http://www.ncbi.nlm.nih.gov/pubmed/?term=Tight+Junction Tight Junction] | |||
==Adherens Junction== | ==Adherens Junction== | ||
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* actin microfilaments anchor the plaque that occurs under the membrane of each cell | * actin microfilaments anchor the plaque that occurs under the membrane of each cell | ||
* plaques not as dense also occur as hemi-form | * plaques not as dense also occur as hemi-form | ||
* heart muscle, layers covering body organs, digestive tract | * {{heart}} muscle, layers covering body organs, digestive tract | ||
* transmembrane proteins | * transmembrane proteins | ||
* Cadherin | * Cadherin | ||
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[[:File:Rat blood–testis barrier 02.jpg|image - blood–testis barrier]] | [[:File:Rat blood–testis barrier 02.jpg|image - blood–testis barrier]] | ||
Search PubMed: [http://www.ncbi.nlm.nih.gov/pubmed/?term=Adherens+Junction Adherens Junction] | |||
==Desmosome== | ==Desmosome== | ||
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|} | |} | ||
Search PubMed: [http://www.ncbi.nlm.nih.gov/pubmed/?term=Desmosome Desmosome] | |||
==Gap Junction== | ==Gap Junction== | ||
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* close membranes 2 - 3 nm apart | * close membranes 2 - 3 nm apart | ||
* connexins form hollow 1.5 nm diameter cylinders | * connexins form hollow 1.5 nm diameter cylinders | ||
* heart muscle, smooth muscle electrical and chemical integration as a single functional unit | * {{heart}} muscle, smooth muscle electrical and chemical integration as a single functional unit | ||
* Also in embryonic development (see {{Blastocyst}}) | * Also in embryonic development (see {{Blastocyst}}) | ||
| [[File:Gap_junction_01.jpg|300px]] | | [[File:Gap_junction_01.jpg|300px]] |
Revision as of 09:18, 26 April 2020
Embryology - 27 Jun 2024 ![]() ![]() ![]() |
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Introduction
Many developmental mechanisms require dynamic changes in cell adhesion that acts through different types of cell junctions.
Adhesion Cartoons
Adhesion EM Images
- Adhesion EM Images: GIT epithelia EM1 | GIT epithelia EM2 | GIT epithelia EM3 | Desmosome EM
- Adhesion Cartoons: Tight junction | Adherens Junction | Desmosome | Gap Junction
Tight Junction
![]() Tight Junction |
Search PubMed: Tight Junction
Adherens Junction
Cadherin isoform naming was based upon the site of original identification: P-cadherin (placenta cadherin, cadherin 3), E-cadherin (epithelial cadherin cadherin 1), N-cadherin (neural cadherin, cadherin 2). |
![]() Adherens Junction |
Search PubMed: Adherens Junction
Desmosome
|
![]() Desmosome |
Search PubMed: Desmosome
Gap Junction
|
![]() Gap Junction |
Search PubMed: gap junction
References
Reviews
Articles
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, June 27) Embryology Developmental Mechanism - Cell Junctions. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Developmental_Mechanism_-_Cell_Junctions
- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G