This presentation provides an overview of blood and its components. It discusses that blood is composed of plasma and formed elements like red blood cells, white blood cells, and platelets. It describes the composition, properties and functions of blood including respiration, nutrient transport, regulation of pH, temperature and pressure. The roles of plasma proteins, red blood cells, white blood cells and platelets are summarized. Conditions like anemia and jaundice are also covered along with their causes, symptoms and treatment approaches.