1-7 Basic concepts

CELL BOUNDARIES
In diagrams and drawings of tissues and organs, we always see the cell limits well defined by boundaries.
Unfortunately, however, in histological sections the cell boundaries are very often not easily seen.
A quick count of nuclei seems to show that there are about 30 hepatocytes in this figure.
As you place the mouse cursor or click over the image, the boundaries of some hepatocytes will be highlighted. Each hepatocyte may have one, two or even three nuclei, meaning that there are probably less than 30 hepatocytes in this image.
Place the cursor and remove or click on and off the image several times to check if you agree with the choice of the boundaries drawn by the author.




Liver. Hematoxylin and eosin. Medium magnification.

Desktops and notebooks: Place the cursor over the figure to access another image.
Touchscreens: Click on the figure to access another image. Click outside of the figure to return to the first image.

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