HEMA Flashcards
3 Phases of Hematopoiesis
- Mesoblastic Phase
- Hepatic Phase
- Medullary phase
Site of Mesoblastic Phase
Blood islands of yolk sac
Site of hepatic Phase
Fetal liver, Thymus, Spleen, Kidneys, LN
Site for medularry Phase
Bone marrow
Also called as embryonic or intra-uterine hemoglobin
Ferns hemoglobin
Examples of Embryonic Hemoglobin are:
- Gower I
- Gower II
- Port land Hemoglobin
Mesoblastic phase is Active in producing Early stages of RBC called?
Primitive Erythroblast
2nd phase of Hematopoiesis
Hepatic phase
Hepatic phase begins ___ to ___ week of Gestation
5th to 7th
Hepatic phase produces:
- WBC such as Granulocytes and Monocytes
- Megakaryocytes
Predominant/ Primary Hemoglobin in Hepatic sites is:
Hemoglobin F
Last Phase of Hematopoesis
Medullary Phase
Occurs in 4th or 5th month of gestation
Medullary Phase or Myeloid Phase
Hemoglobin produce in Medullary Phase
- Hemoglobin F
- Hemoglobin A
Formation of blood cells that originated from Pluripotential hematopoietic stem cell
Monophyletic Theory