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Gap Junctions, Tight Junctions, Desmosomes...

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Sorry, I could have elaborated when I wrote my post earlier - was on my ipad and on the treadmill.


Desmosomes are most abundant in cells subject to stretching - skin, heart, etc. (so epithelial and cardiac muscle tissues)


Tight Junctions are found primarily in sheets of epithelial tissues and for these passage across much take place through the cell - not between them


Gap Junctions are abundant in smooth and cardiac muscle and in nonmuscle tissue, permit unrestricted passage of small nutrient molecules between cells.



Hope that helps?

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