Overview

DescriptionYou have learnt that all living cells have to be provided with nutrients, O2 and other essential substances. Also, the waste or harmful substancesproduced, have to be removed continuously for healthy functioning of tissues. It is therefore, essential to have efficient mechanisms for themovement of these substances to the cells and from the cells. Different groups of animals have evolved different methods for this transport. Simple organisms like sponges and coelenterates circulate water from their surroundings through their body cavities to facilitate the cells to exchange these substances. More complex organisms use special fluids within their bodies to transport such materials. Blood is the most commonly used body fluid by most of the higher organisms including humans for this purpose.Another body fluid, lymph, also helps in the transport of certain substances. In this chapter, you will learn about the composition and properties ofblood and lymph (tissue fluid) and the mechanism of circulation of blood is also explained herein.Course ContentCirculatory System (Introduction)Composition of Human blood 1Composition of Human blood 2Different types of Leucocytes (Granulocytes)Different types of Leucocytes (Agranulocytes)Coagulation of BloodBlood VesselsVeins and CapillariesDouble CirculationheartWall of HeartExternal Structure of HeartValves of heartHeart Beat and Pulseblood pressureConducting System of HeartHypertensionplateletsThese are fantastic concepts that will lay a strong theoretical foundation for you and help you with competitive exams like NEET , CET, Foundation

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