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kris10leejmu
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Define nucleus.
structure within a cell that contains DNA, nucleoli, and nuclear proteins
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Define nucleolus.
small, round-oval structures within the nucleus of a cell that contains RNA and proteins
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Define chromatin.
a complex of DNA and nuclear proteins found within the nucleus
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Define perinuclear clear zone.
a clear area near or around the nucleus of a cell. it contains the golgi apparatus that does not stain
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Define adipocyte.
fat cell
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Define erythroid.
pertaining to a red blood cell or one of its developmental precursors
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Define myeloid.
- pertaining to bone marrow. bone marrow stem cells that give rise to erythrocyte precursors, megakaryocytes, and nonlymphocytic cells
- often used as a term that identifies granulocytic cells and their precursors and that is the way we will use this term in lab
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Define megakaryocyte.
bone marrow cell form which blood platelets arise
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Define plasma cell.
a leukocyte that has differentiated to an antibody secreting cells - produce antibodies
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Define osteoblast.
large cell found in the bone marrow that is important to bone formation
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Define osteoclast.
very large multinucleated cell in the bone marrow that is important to bone remodeling (breaks down bone)
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Define mast cell.
- granulated round cell found in low numbers in that bone marrow
- tissue cell characterized by abundant, small, metachromatic cytoplasmic granules that function as part of the immune system.
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Define mott cell.
plasma cells containing multiple globular cytoplasmic inclusions composed of immunoglobulins (russell bodies)
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Define russell bodies.
cytoplasmic inclusions in plasma cells representing packes of immunoglobulins
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Define hemosiderin.
insoluble form of iron that appears as a golden-brown to black, granular to globular material
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Define mitosis.
cell division, the chromosomes are visible
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Define M:E ratio.
relative percentages of myeloid and erythroid cells in the bone marrow
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Define Jamshidi needle.
needle for obtaining bone marrow core samples
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Define N:C ratio.
relative percentage of nuclear and cytoplasmic material in a cell.
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Define Rosenthal needle.
used for aspirating of bone marrow
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