therefore megakaryocytes, in distinction fromthe multinucleate osteoclasts or polykaryocytes. The nucleus is solarge that it may be cut into several shces, and by combining these it hasbeen found that the entire nucleus is a hollow sphere with perforated walls.The nuclei, however, are very… … BONE MARROW. 153 is divisible into two concentric zones, which differ from the protoplasmwithin the nuclear sphere. In ordinary preparations these details arenot evident. A large number of centrosome granules (over one hundred)has been found, and pluripolar mitoses have been observed. A phago-cytic…
Histology · Microscopy
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