Neonatal Hemopoiesis (hematopoiesis) Blood production in New Born2
Neonatal hemopoiesis refers to the process of blood cell formation in newborns, which is crucial for maintaining oxygen transport, immune defense, and clotting mechanisms. Here's an overview:
Key Features:
Sites of Hemopoiesis:
During fetal development, hemopoiesis occurs in the yolk sac, liver, and spleen.
By birth, the bone marrow becomes the primary site for blood cell production.
Types of Blood Cells Produced:
Red Blood Cells (RBCs): Carry oxygen to tissues.
White Blood Cells (WBCs): Provide immune defense.
Platelets: Aid in blood clotting.
Regulation:
Controlled by hematopoietic stem cells (HSCs), which differentiate into various blood cell lineages.
Growth factors like erythropoietin and granulocyte colony-stimulating factor (G-CSF) play a role in stimulating specific cell production.
Developmental Changes:
Neonates have higher levels of fetal hemoglobin (HbF), which gradually transitions to adult hemoglobin (HbA) after birth.
The neonatal immune system is immature, with lower neutrophil counts and functional limitations.
#Neonatal #Hemopoiesis
Видео Neonatal Hemopoiesis (hematopoiesis) Blood production in New Born2 канала MBBS NAIJA
Key Features:
Sites of Hemopoiesis:
During fetal development, hemopoiesis occurs in the yolk sac, liver, and spleen.
By birth, the bone marrow becomes the primary site for blood cell production.
Types of Blood Cells Produced:
Red Blood Cells (RBCs): Carry oxygen to tissues.
White Blood Cells (WBCs): Provide immune defense.
Platelets: Aid in blood clotting.
Regulation:
Controlled by hematopoietic stem cells (HSCs), which differentiate into various blood cell lineages.
Growth factors like erythropoietin and granulocyte colony-stimulating factor (G-CSF) play a role in stimulating specific cell production.
Developmental Changes:
Neonates have higher levels of fetal hemoglobin (HbF), which gradually transitions to adult hemoglobin (HbA) after birth.
The neonatal immune system is immature, with lower neutrophil counts and functional limitations.
#Neonatal #Hemopoiesis
Видео Neonatal Hemopoiesis (hematopoiesis) Blood production in New Born2 канала MBBS NAIJA
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12 апреля 2025 г. 19:21:32
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