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Osteoblast Information and Courses from MediaLab, Inc.

These are the MediaLab courses that cover Osteoblast and links to relevant pages within the course.

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Laboratories Individuals

CLIA Hematology / Hemostasis Review
The cell indicated by the arrow in the illustration is occasionally seen in the bone marrow and can be mistaken for a plasma cell - what is this cell called:View Page

Introduction to Bone Marrow
Which of the following cell types would be considered a rare finding in a direct bone marrow smear?View Page
Please pick the marrow cell from the list below which has highly granular basophilic cytoplasm but does not show nuclear lobation.View Page
Osteoblast

Another example of a cell rarely seen in the bone marrow is an osteoblast. Osteoblasts are cells which are similar in appearance but somewhat larger than plasma cells or tumor cells. The nucleus is eccentric and the "hoff" area is sometimes located away from the nucleus. The cytoplasm appears rather foamy when compared to a plasma cell. The size of an osteoblast is 20-25 microns. Osteoblast produce bone.

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Please identify the cell in this image.View Page
Please identify the cells present in this image?View Page
Tumor Cells

This slide shows a cluster of tumor cells. Notice that the cytoplasm scant in contrast to the abundant cytoplasm of osteoblasts.

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Please identify the cell in this image?View Page
More Osteoblasts

This slide shows more examples of osteoblasts. These cells may appear in clumps. Since tumor cells also appear in clumps, they must be differentiated. Osteoblasts, however, have a more distinct shape and appear more uniform than tumor cells.

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