Orris

Blood physiology

Reading File
Blood physiology includes:
  1. Composition of blood - plasma, formed elements, hematocrit
  2. Plasma proteins - albumin, globulins, fibrinogen and their functions
  3. Red blood cells - erythropoiesis, hemoglobin, oxygen and carbon dioxide transport, RBC lifespan
  4. White blood cells - types, functions, leukocyte responses
  5. Platelets and hemostasis - platelet plug formation, coagulation cascade, clot dissolution
  6. Blood groups and transfusion - ABO and Rh systems, compatibility, hemolytic disease of the newborn
  7. Regulation and clinical measurements - erythropoietin, CBC, ESR, hematocrit, anemia and polycythemia basics
Blood is a specialized connective tissue that transports gases, nutrients, hormones, wastes, and heat; maintains pH, fluid volume, and electrolyte balance; and provides immune defense and hemostasis. It consists of plasma (about 55%) and cellular components (about 45%), predominantly red blood cells.
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All about blood

Reading File
“All about blood” is a large physiology and hematology topic. Here is the study map:
  1. Blood composition
    • Plasma, serum, formed elements, hematocrit
    • Plasma proteins and their functions
  2. Red blood cells and hemoglobin
    • RBC structure, normal values, lifespan
    • Erythropoiesis and erythropoietin
    • Hemoglobin structure, synthesis, and breakdown
    • Oxygen and carbon dioxide transport
  3. White blood cells and immunity
    • Neutrophils, lymphocytes, monocytes, eosinophils, basophils
    • Leukocyte production and functions
  4. Platelets and hemostasis
    • Platelet formation and function
    • Vasoconstriction, platelet plug, coagulation cascade
    • Anticoagulants and fibrinolysis
  5. Blood groups and transfusion
    • ABO and Rh blood-group systems
    • Cross-matching and transfusion compatibility
    • Hemolytic disease of the newborn
  6. Laboratory values and tests
    • CBC, hemoglobin, hematocrit, RBC indices
    • ESR, peripheral smear, reticulocyte count
    • Coagulation tests: PT/INR, aPTT, bleeding time concepts
  7. Clinical correlation
    • Anemia, polycythemia, leukocytosis, thrombocytopenia
    • Bleeding and clotting disorders
    • Basic approach to interpreting a CBC
Overview: Blood is a fluid connective tissue. Its plasma carries water, proteins, electrolytes, nutrients, hormones, and wastes. Its cells perform transport, defense, and clotting: RBCs transport respiratory gases; WBCs defend against infection; and platelets with clotting factors prevent blood loss.
Tell me which section you want first, for example: “RBC and hemoglobin,” “coagulation,” or “full CBC interpretation.”
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