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Questions and Answers
What is a hemocytoblast?
What is a hemocytoblast?
- A type of blood cell
- A type of myeloid stem cell
- A type of lymphoid stem cell
- A type of pluripotent stem cell (correct)
What do hemocytoblasts produce when they divide?
What do hemocytoblasts produce when they divide?
Blood cells
What are pluripotent stem cells?
What are pluripotent stem cells?
- Stem cells that can become almost all types of tissues and cells in the body (correct)
- Cells that can only become blood cells
- Cells that cannot differentiate into various cell types
- None of the above
What are myeloid stem cells?
What are myeloid stem cells?
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What are lymphoid stem cells?
What are lymphoid stem cells?
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What does CFU-E stand for?
What does CFU-E stand for?
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Study Notes
Hematopoiesis Overview
- Hematopoiesis is the process of blood cell formation from stem cells.
- It primarily occurs in the bone marrow.
Hemocytoblast
- A type of pluripotent stem cell specific for blood cell production.
- When dividing, produces one blood cell and retains one hemocytoblast.
- Ensures continuous availability of hemocytoblasts for ongoing blood cell generation.
Pluripotent Stem Cells
- Stem cells capable of differentiating into almost any tissue or cell type in the body.
- Play a critical role in development and tissue regeneration.
Myeloid Stem Cells
- A subtype of stem cells derived from hemocytoblasts.
- Responsible for producing various blood cells, including red blood cells, platelets, and some white blood cells.
Lymphoid Stem Cells
- Another subtype of hemocytoblasts that specifically differentiate into lymphocytes.
- Lymphocytes are essential for the immune response, including B cells and T cells.
CFU-E
- Colony Forming Unit-Erythroid, a type of progenitor cell involved in the production of red blood cells.
- Represents a critical step in the differentiation pathway of myeloid stem cells towards erythrocytes.
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