1. Powering the Eye

This image is a frozen section of a mouse eye that shows connective tissue, blood vessels, sclera (the white part of the eye), and part of the retina. The green parts of this image are the calcium-binding protein Calretinin, which have been stained with an antibody. Cell nuclei, stained with Hoescht 33258, are blue in this image.
Calcium-binding proteins participate in cell-signaling pathways by binding to calcium ions and thus power many aspects of a cell’s functioning. The circular structures we see here are blood vessels that fuel the function of the eye by providing nutrients. A sliver of the retina — the most energy-hungry part of the eye — can be seen at the lower right, its turquoise hair-like photoreceptor outer segments fringing the adjacent bright-blue cell body layer.


Credit: Praveena Joseph-de Saram (GS) and Michael J. Berry, II (fac)

    Powering the Eye

    This image is a frozen section of a mouse eye that shows connective tissue, blood vessels, sclera (the white part of the eye), and part of the retina. The green parts of this image are the calcium-binding protein Calretinin, which have been stained with an antibody. Cell nuclei, stained with Hoescht 33258, are blue in this image.

    Calcium-binding proteins participate in cell-signaling pathways by binding to calcium ions and thus power many aspects of a cell’s functioning. The circular structures we see here are blood vessels that fuel the function of the eye by providing nutrients. A sliver of the retina — the most energy-hungry part of the eye — can be seen at the lower right, its turquoise hair-like photoreceptor outer segments fringing the adjacent bright-blue cell body layer.

    Credit: Praveena Joseph-de Saram (GS) and Michael J. Berry, II (fac)

Notes

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About me

I am a collection of water, calcium and organic molecules called Zeni, but not a single one of the cells that compose me knows who I am, or cares ...so why should you?