Presentation on theme: "Maj Gen (R) Masood Anwar Professor of Haematology."— Presentation transcript:
Maj Gen (R) Masood Anwar Professor of Haematology
Functions of blood ◦ Transport of nutrients ◦ Transport of gases ◦ Haemostasis ◦ Defence Composition of blood ◦ Cells (RBC, WBC, Platelets) ◦ Plasma (Colloids, Crystalloids, Water)
PYSIOLOGICAL DEFINITION ◦ Decrease in oxygen carrying capacity of blood. ANALYTICAL (PATHOLOGICAL) DEFINITION ◦ Reduction in total circulating red cell mass ◦ Reduction in Haemoglobin concentration and/or Haematocrit
These are blood cells produced in the bone marrow from a pleuripotent haemopoietic stem cell by processes of division, differentiation and maturation and released in the circulation to function mainly to transport oxygen from lungs to other tissues of the body.
MORPHOLOGICAL CLASSIFICATION Based on appearance of RBC under the microscope OR red blood cell indices PATHOLOGICAL CLASSIFICATION Based on abnormality of anatomical, biochemical or physiological abnormality ETIOLOGICAL CLASSIFICATION Based on specific causative process/agent