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yasint kembali *backsound tepuk tangan meriah* :D
Label: blood, human circulatory system, peredaran darah |
the structure and functions of blood circulatory system
blood
The heart pumps blood through the blood vessels. In a minute a drop of blood goes through your body, moves from your heart to all parts of your body, and goes back to your heart.
Human blood system forms a network of closed system which is called a closed circulatory system. This means that there is always blood in the blood vessels. The blood system transport substances such as food and oxygen through the blood to living cells. In multicellular organism such a transportation system is needed. The heart functions as a pump to help move and circulate the blood through blood vessels.
Plasma