| D008297 |
Male |
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Males |
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| D012156 |
Reticulocytes |
Immature ERYTHROCYTES. In humans, these are ERYTHROID CELLS that have just undergone extrusion of their CELL NUCLEUS. They still contain some organelles that gradually decrease in number as the cells mature. RIBOSOMES are last to disappear. Certain staining techniques cause components of the ribosomes to precipitate into characteristic "reticulum" (not the same as the ENDOPLASMIC RETICULUM), hence the name reticulocytes. |
Reticulocyte |
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| D001853 |
Bone Marrow |
The soft tissue filling the cavities of bones. Bone marrow exists in two types, yellow and red. Yellow marrow is found in the large cavities of large bones and consists mostly of fat cells and a few primitive blood cells. Red marrow is a hematopoietic tissue and is the site of production of erythrocytes and granular leukocytes. Bone marrow is made up of a framework of connective tissue containing branching fibers with the frame being filled with marrow cells. |
Marrow,Red Marrow,Yellow Marrow,Marrow, Bone,Marrow, Red,Marrow, Yellow |
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| D001856 |
Bone Marrow Examination |
Removal of bone marrow and evaluation of its histologic picture. |
Examination, Bone Marrow,Bone Marrow Examinations,Examinations, Bone Marrow |
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| D002458 |
Cell Fractionation |
Techniques to partition various components of the cell into SUBCELLULAR FRACTIONS. |
Cell Fractionations,Fractionation, Cell,Fractionations, Cell |
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| D004900 |
Erythroblasts |
Immature, nucleated ERYTHROCYTES occupying the stage of ERYTHROPOIESIS that follows formation of ERYTHROID PRECURSOR CELLS and precedes formation of RETICULOCYTES. The normal series is called normoblasts. Cells called MEGALOBLASTS are a pathologic series of erythroblasts. |
Erythrocytes, Nucleated,Normoblasts,Proerythroblasts,Pronormoblasts,Erythroblast,Erythrocyte, Nucleated,Normoblast,Nucleated Erythrocyte,Nucleated Erythrocytes,Proerythroblast,Pronormoblast |
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| D004920 |
Erythropoiesis |
The production of red blood cells (ERYTHROCYTES). In humans, erythrocytes are produced by the YOLK SAC in the first trimester; by the liver in the second trimester; by the BONE MARROW in the third trimester and after birth. In normal individuals, the erythrocyte count in the peripheral blood remains relatively constant implying a balance between the rate of erythrocyte production and rate of destruction. |
Erythropoieses |
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| D005319 |
Fetal Hemoglobin |
The major component of hemoglobin in the fetus. This HEMOGLOBIN has two alpha and two gamma polypeptide subunits in comparison to normal adult hemoglobin, which has two alpha and two beta polypeptide subunits. Fetal hemoglobin concentrations can be elevated (usually above 0.5%) in children and adults affected by LEUKEMIA and several types of ANEMIA. |
Hemoglobin F,Hemoglobin, Fetal |
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| D006446 |
Hemoglobin E |
An abnormal hemoglobin that results from the substitution of lysine for glutamic acid at position 26 of the beta chain. It is most frequently observed in southeast Asian populations. |
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| D006455 |
Hemoglobins, Abnormal |
Hemoglobins characterized by structural alterations within the molecule. The alteration can be either absence, addition or substitution of one or more amino acids in the globin part of the molecule at selected positions in the polypeptide chains. |
Abnormal Hemoglobins |
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