Questions and Answers
What is the main function of blood as a connective tissue?
Delivery of nutrient and oxygen to the tissues
Which book is recommended for learning about blood, haemopoiesis, and bone marrow?
Wheater's Functional Histology, 6th Edition
What are the cellular constituents of blood?
Red blood cells (RBC) and white blood cells (WBC)
Which organ plays a role in normal haematopoiesis?
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What is the main function of the thymus in relation to haematopoiesis?
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Which type of tissue is blood classified as?
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What is the composition of blood in terms of Blood Cells and Plasma?
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What is the function of Platelets?
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What is the lifespan of RBCs?
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Which cells are sub-classified into Granulocytes and Agranulocytes?
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Where do immune system cells like Lymphocytes circulate until they reach secondary lymphoid organs?
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What is the function of Neutrophils?
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What do Eosinophils and Basophils contain?
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What is the Thymus responsible for?
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Where are B cells maintained and differentiated?
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What does Hematocrit measure?
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Which organ is the largest lymphatic organ and filters blood?
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What are the components of the splenic white pulp?
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Which condition is characterized by symptoms such as tiredness, faintness, and shortness of breath?
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What is the most common cause of iron deficiency anaemia?
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How are types of anaemia subdivided according to Mean Cell Volume (MCV)?
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What are the signs of iron deficiency anaemia?
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Which of the following is not a function of blood as a connective tissue?
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Which book is not recommended for learning about blood, haemopoiesis, and bone marrow?
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What is the main function of the thymus in relation to haematopoiesis?
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What is the composition of blood in terms of Blood Cells and Plasma?
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Where are B cells maintained and differentiated?
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What do Eosinophils and Basophils contain?
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What is the most common cause of iron deficiency anaemia?
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What is the function of Platelets?
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What are the components of the splenic white pulp?
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What is the main function of the spleen in relation to normal haematopoiesis?
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Which organ lacks a cortex and medulla?
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What is the underlying cause of iron deficiency anaemia related to menstrual loss in young females?
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Which type of anaemia is characterized by small (microcytic), hypochromic cells?
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What are the symptoms of iron deficiency anaemia?
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Which organ is responsible for reacting immunologically and filtering blood?
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What are the clinical signs of iron deficiency anaemia?
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What are the types of cells found in splenic white pulp?
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What causes iron deficiency anaemia in young females?
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What are the components of splenic red pulp?
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What is the function of Anticoagulants?
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What is the size of RBCs (erythrocytes)?
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What is the main function of Neutrophils?
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What are the characteristics of Eosinophils and Basophils?
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Where do Lymphocytes function in adaptive immunity?
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What is the main function of Thymus in relation to T-cell differentiation?
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What is the main function of Platelets?
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What are the components of blood in terms of Blood Cells and Plasma?
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What is the main function of the spleen in relation to normal haematopoiesis?
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Where are B cells maintained and differentiated?
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Study Notes
– Blood is composed of 45% Blood Blood Cells (4 types: RBCs, WBCs, Platelets, and Plasma) and 55% Plasma. – Hematocrit measures the packed volume of Red Blood Cells (RBCs) in a blood sample. – Anticoagulants prevent clotting, Plasma is called serum when clotting components are removed. – RBCs, erythrocytes, are anucleate and biconcave with a size of 7.8 μm. They function only within the bloodstream, have a lifespan of 120 days, and are replaced by reticulocytes. – Platelets, derived from megakaryocytes, are involved in coagulation, forming an initial plug and a firm thrombus for haemostasis. – Leukocytes, white blood cells, are sub-classified into Granulocytes (neutrophils, eosinophils, and basophils) and Agranulocytes (lymphocytes and monocytes). – Neutrophils are multilobed, motile cells that patrol for microbial infections and kill invading pathogens using phagocytosis, degranulation, and NETs. – Eosinophils and Basophils are the least numerous WBCs, and they contain bright orange and basophilic granules, respectively. They are associated with allergic reactions, parasitic infections, and chronic inflammation. – Lymphocytes and Monocytes are similar in size to RBCs. Lymphocytes function in adaptive immunity, and Monocytes are the precursors of tissue-specific phagocytes. – The immune system cells, such as Lymphocytes, circulate in the blood until they reach secondary lymphoid organs like Lymph nodes. – Lymph nodes maintain and differentiate B cells, and they house T cells. They detect and react to lymph-borne antigens, and they are concentrated in specific regions such as axillae, groins, and mesenteries. – The Lymph node architecture includes a cortex, a medulla, and a capsule, with various reticular and immune cells present. – The Thymus is a bilobed organ responsible for T-cell differentiation, and it contains thymocytes. The thymic cortex is composed of epithelioreticular cells, and Hassal’s corpuscles are located in the medulla.
– Blood is composed of 45% Blood Blood Cells (4 types: RBCs, WBCs, Platelets, and Plasma) and 55% Plasma. – Hematocrit measures the packed volume of Red Blood Cells (RBCs) in a blood sample. – Anticoagulants prevent clotting, Plasma is called serum when clotting components are removed. – RBCs, erythrocytes, are anucleate and biconcave with a size of 7.8 μm. They function only within the bloodstream, have a lifespan of 120 days, and are replaced by reticulocytes. – Platelets, derived from megakaryocytes, are involved in coagulation, forming an initial plug and a firm thrombus for haemostasis. – Leukocytes, white blood cells, are sub-classified into Granulocytes (neutrophils, eosinophils, and basophils) and Agranulocytes (lymphocytes and monocytes). – Neutrophils are multilobed, motile cells that patrol for microbial infections and kill invading pathogens using phagocytosis, degranulation, and NETs. – Eosinophils and Basophils are the least numerous WBCs, and they contain bright orange and basophilic granules, respectively. They are associated with allergic reactions, parasitic infections, and chronic inflammation. – Lymphocytes and Monocytes are similar in size to RBCs. Lymphocytes function in adaptive immunity, and Monocytes are the precursors of tissue-specific phagocytes. – The immune system cells, such as Lymphocytes, circulate in the blood until they reach secondary lymphoid organs like Lymph nodes. – Lymph nodes maintain and differentiate B cells, and they house T cells. They detect and react to lymph-borne antigens, and they are concentrated in specific regions such as axillae, groins, and mesenteries. – The Lymph node architecture includes a cortex, a medulla, and a capsule, with various reticular and immune cells present. – The Thymus is a bilobed organ responsible for T-cell differentiation, and it contains thymocytes. The thymic cortex is composed of epithelioreticular cells, and Hassal’s corpuscles are located in the medulla.
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