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  1. #1
    drgoljan is offline Junior Member 510 points
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    Epithelial cell junction.

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    I posted this on other site but no one responded,let me see if my smart friend Gflip can help with epithelial cell junctions exact location and any freez fractures images for these?
    Tight junctions are in barrier of human body,like blood vessel,bile canaliculi.[ seal strands do not allow any passive diffusion,but active and carrier mediated]

    Zona adherens in Heart

    Desmosomes in skin.

    Gap junctions in various parts of body,allowing communication between cells ,and passage of small molecules.most abundant where please add?

    Hemidesomsomes on basement membrane.

    That's what i know but any addition will be appreciated.

  2. #2
    omarsiag is offline Newbie 510 points
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    tight junctions can be found also between sertoli cells in the male testis they subdivide the seminiferous tubules into basal "outer" and adluminal "inner" compartments.

    the basal compartments contain spermatogonia cells but the adluminal compartments contain spermatocytes and spermatids.

    hope that was a good add to ur mind


    Omar Siag

  3. #3
    cooolguy is offline Member 49 points
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    You are correct that Gap junctions are found in various parts of the body.

    One location where they are prominent is the heart (cardiac muscle) which allow the signal (ions?) to move from the SA node through the purkinje fibers to contract the heart.

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