Developmental Mechanism - Cell Junctions

Embryology - 3 Jun 2024 Expand to Translate
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Introduction

Many developmental mechanisms require dynamic changes in cell adhesion that acts through different types of cell junctions.

Adhesion Cartoons

Tight junction
Adherens Junction
Desmosome
Gap Junction

Adhesion EM Images

GIT epithelia EM1
GIT epithelia EM2
GIT epithelia EM3
Desmosome EM

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

Discovered by M.G. Farquhar and G.E. Palade in 1963
zonula occludens
Fusion of 2 plasma membranes acts as a “seal”
Epithelia lining
digestive system gut, ducts, cavities of glands, liver, pancreas capillary walls urinary bladder

Tight junction

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Cite this page: Hill, M.A. (2024, June 3) Embryology Developmental Mechanism - Cell Junctions. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Developmental_Mechanism_-_Cell_Junctions

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