BLOOD VESSELS

https://docs.google.com/presentation/d/1ITNub5bAU5j0LLCN8gPF5veInYyiyEAe/edit?usp=drive_link&ouid=112418425102942225803&rtpof=true&sd=true 


The human circulatory system consists of the heart, blood cells, lymphatic system and network of blood vessels. These four main organs have specific roles and functions, which work together to keep us active and healthy.

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