Term
| Name the three processes that constitute the hemopoiesis. |
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Definition
| Erythropoisis, Leukopoiesis, and thrombopoiesis. |
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Term
| When does hemopoiesis happen in the yolk sack? |
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Definition
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Term
| In what period do the hepatic and splenic phases of hemopoiesis are operational? |
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Definition
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Term
| When does the bone marrow phase of hemopoiesis start? |
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Definition
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Term
| To which places is hemopoiesis confined after the 10th birthday? |
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Definition
| Red Bone marrow9ribs, sternum,pelvis proximal epiphysis of femur and humerus. |
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Term
| How is bone marrow classified? |
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Definition
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Term
| What characterizes the yellow bone marrow? |
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Definition
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Term
| What characterizes the red bone marrow? |
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Definition
| Hemopoietic tissue, interspersed adipocytes. |
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Term
| What elements make the bone marrow stroma? |
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Definition
| Reticular cells (currently known as adventitial cells) and the reticular fibres they create. |
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Term
| What are the adventitial cells? |
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Definition
| Relating to the outer coat or adventitia of a blood vessel or other structure. |
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Term
| What is the main difference between stem cells and colony forming units (CFUs)? |
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Definition
| Stem cells produce all the subsets of hemopoietic cells & lack of morphological unique characteristics. CFU’s are capable of producing one particular subset of blood cells |
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Term
| The PPSC gives raise to the |
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Definition
| CFU-L from which lymphocytes develop, and the CFU-GEMM, from which GRANULOCYTIC ERYTHROCYTIC, MONOCYTIC AND MEGAKARYOCITIC CELLS develop. |
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Term
| What characterizes the erythropoietic colonies? |
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Definition
| ROUND NUCLEI,HOMOGENOUS CYTOPLASM |
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Term
| What characterizes the granulocytopoietic colonies? |
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Definition
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Term
| What characterizes the thrombocytopoietic colonies? |
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Definition
| BIG CELLS W/MULTILOBULATED NUCLEI |
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Term
| How many days does erythropoiesis take? |
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Definition
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Term
| What elements are necessary for a normal erythropoiesis? |
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Definition
| Erythropoitin, vitamins b12,b6,C,E, FLOIC ACID, RIBOFLAVIN,PANTOTHENIC ACID, THIAMIN, IRON, COBALT,MAGANESE AND AMINO ACIDS |
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Term
| Name in order the cells that appear in erythropoiesis. |
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Definition
P-PROERYTHROBLAST
B-BASOPHILIC ERYTHROBLAST
P-POLYCHROMATIC ERYTHROBLAST
O-ORTOCHROMATIC ERYTHROBLAST
R-RETICULOCYTE
E-ERYTHROCYTE |
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Term
| What erythropoietic cell is characterized by the peak of rRNA content and in which the haemoglobin synthesis starts? |
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Definition
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Term
| What is the earliest erythropoietic cell able to circulate? |
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Definition
| ORTOCHROMATIC ERyTHROBLAST |
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Term
| Name in order the cells that appear in granulocytopoiesis. |
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Definition
| MYELOBLAST>PROMYELOCYTE>MYELOCYTE>BAND>MATURE GRANULOCYTE>MYELOCYTE. |
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Term
| At what stage do the specific granules and hence the differentiation of the basophilic, eosinophilic and neutrophilic colonies starts? |
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Definition
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Term
| At what stage does the mitotic phase of granulocytopoiesis ends? |
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Definition
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Term
| How many days does granulocytopoiesis take? |
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Definition
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Term
| Name in order the cells that appear in thrombocytopoesis. |
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Definition
| MEGAKARYOBLASTS,MEGAKARYOCYTES,PLATELETS |
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Term
| What is the highest chromosomic number a megakaryocyte can achieve? |
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Definition
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Term
| Through what process does the megakaryocyte give raise to platelets? |
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Definition
| MEGAKARYOCYTE CYTOPLASMIC FRAGMENTATION |
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