Podcast
Questions and Answers
What is the basic structure of bone marrow?
What is the basic structure of bone marrow?
- Dense irregular connective tissue with a network of lymphatic vessels
- Stratified squamous epithelium with specialized crypts
- Columnar epithelium with goblet cells
- Loose connective tissue with scattered islands of hematopoietic cells (correct)
How does a single type of multipotential stem cell give rise to two lineages (myeloid cells and lymphocytes), and then each of those two lineages gives rise to all the mature blood cells?
How does a single type of multipotential stem cell give rise to two lineages (myeloid cells and lymphocytes), and then each of those two lineages gives rise to all the mature blood cells?
- By symmetric cell division followed by fusion of daughter cells to create diverse lineages
- Through a process of endoreduplication resulting in distinct genetic profiles in the daughter cells
- By random assortment of chromosomes during mitosis creating diverse genetic combinations
- By asymmetric cell division leading to differential gene expression in the daughter cells (correct)
Where does the production of new blood cells occur after birth?
Where does the production of new blood cells occur after birth?
- Bone marrow (correct)
- Liver
- Spleen
- Lymphatic tissues
What gives rise to all the lymphocytes?
What gives rise to all the lymphocytes?
Which type of bone marrow is responsible for the production of blood and blood-forming cells?
Which type of bone marrow is responsible for the production of blood and blood-forming cells?
What is the approximate life span of a reticulocyte in the bloodstream?
What is the approximate life span of a reticulocyte in the bloodstream?
Which growth factor is synthesized and secreted by the kidney in response to decreased blood oxygen concentration?
Which growth factor is synthesized and secreted by the kidney in response to decreased blood oxygen concentration?
What does the term 'shift to the left' in the context of granulocytes refer to?
What does the term 'shift to the left' in the context of granulocytes refer to?
What is the progenitor for both monocytes and granulocytes?
What is the progenitor for both monocytes and granulocytes?
Where do newly formed monocytes primarily enter after leaving the circulation?
Where do newly formed monocytes primarily enter after leaving the circulation?
Which cell type transform into macrophages within a day or two of entering the connective tissue spaces?
Which cell type transform into macrophages within a day or two of entering the connective tissue spaces?
Where do some lymphoid stem cells migrate to differentiate into T lymphocytes?
Where do some lymphoid stem cells migrate to differentiate into T lymphocytes?
What is the characteristic feature of thrombopoiesis involving the nucleus?
What is the characteristic feature of thrombopoiesis involving the nucleus?
What is the source of platelets in adults?
What is the source of platelets in adults?
