Its function is to clot the blood when a circulatory vessel platelets surrounding the wound to reduce the size and prevent bleeding breaks. but they are few in number. 13. On breakdown it forms important bile pigments Blood gets its colour from trillions of Erythrocytes in plasma. It performs various functions in the body. Blood: composition, properties and functions. The ratio of red cells to white blood cells is 600 to 1. Composition of Blood and its Function of Blood :-Blood is composed of straw-colored transparent fluid plasma in which different types of cells are suspended plasma constitutes about 55% & cell about 45% of blood volume. 9. It contains plasma, red blood cells, white blood cells, and platelets. RBCs contain the iron-rich protein called haemoglobin; give blood its red colour. Describe the chemical composition of hemoglobin and its function in the red blood cell. Blood is a liquid connective tissue that contains cellular elements (blood cells) and fluid matrix (plasma). When a sample of blood is spun in a centrifuge, the cells and cell fragments are separated from the liquid intercellular matrix.Because the formed elements are heavier than the liquid matrix, they are packed in the bottom of the tube by the centrifugal force. The increase in the number of leucocytes is called Leucocytosis. The main function of haemoglobin is oxygen carriage from lungs to body tissues and carbon dioxide transport in blood. Other functions include supplying oxygen and nutrients to tissues, removing waste, transporting hormones and other signals throughout the body, and regulating body pH and core body temperature. FUNCTIONS OF BLOOD Total blood volume- 5-6 litres (8% of body weight) Specific gravity- 1050-1060. The white blood cells are larger than R.B.C. Explain the role of blood as a diagnostic tool. Let us study in detail about the composition and function of blood, its components, blood transfusion, blood pressure, and blood … They are nucleated blood cells. These cells have their own functions and roles to play in the body. Fibrinogen is converted into sticky threads together with platelets form a network to catch the red blood cells, red coagulates and forms a crust so that the bleeding is prevented. Study of blood and its disease is known as Hematology; Composition of Blood: https://open.oregonstate.education/aandp/chapter/18-1-functions-of-blood Viscosity- 4-5 times that of water. Blood helps in the transportation of different substances throughout the body. The number increases at times of stress and pain. COMPOSITION OF BLOOD. Composition of the Blood. The number of leucocytes varies from 5000 to 9000/mm 3 of blood. Blood is composed of plasma, red blood cells, white blood cells, and platelets. pH – 7.4 alkaline. 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