Description

You have learnt that all living cells have to be provided with nutrients, O2 and other essential substances. Also, the waste or harmful substances

produced, have to be removed continuously for healthy functioning of tissues. It is therefore, essential to have efficient mechanisms for the

movement 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 of

blood and lymph (tissue fluid) and the mechanism of circulation of blood is also explained herein.

Course Content

• Circulatory System (Introduction)

• Composition of Human blood 1

• Composition of Human blood 2

• Different types of Leucocytes (Granulocytes)

• Different types of Leucocytes (Agranulocytes)

• Coagulation of Blood

• Blood Vessels

• Veins and Capillaries

• Double Circulation

• heart

• Wall of Heart

• External Structure of Heart

• Valves of heart

• Heart Beat and Pulse

• blood pressure

• Conducting System of Heart

• Hypertension

• platelets

These are fantastic concepts that will lay a strong theoretical foundation for you and help you with competitive exams like NEET , CET, Foundation