Neurons, the big electric cells of the brain, are good places to look for healthy nucleoli. They are constantly synthesizing protein to maintain their processes and connections, which may be several feet away.

This is another neuron.

With your study partners, find:

• three big neurons


• the nucleus and nuceolus of the one in the center

Fun to know:

Did you notice that a section through a big cell might miss not only the nucleolus, but even the nucleus?

We call this a "tangential cut".

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Kansas City University of Medicine and Biosciences