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Learning objective: Students should be able to know about the circulatory system and its
functions.
Circulatory System
The circulatory system is the organ system that circulates blood around the body. The heart,
blood and the blood vessels make up the circulatory system.
The heart is the central organ of circulatory system. It is a muscular organ located towards
left, of your chest, and it's about the size of your fist. The average heart beats approximately
72 times each minute. It beats continuously to pump blood to all the parts of the body.
Blood vessels are small and big tubes in which blood flows throughout our body. The blood
vessels are of two types:
a) Arteries
b) Veins
Learning outcome: Students learnt about the circulatory system and its functions.
