What is Blood?

Blood is a body fluid in humans and other animals that delivers necessary substances such as nutrients (glucose, amino acids, and fatty acids) and oxygen (by the help of hemoglobin) to the cells and transports metabolic waste products (carbon dioxide, urea, and lactic acid) away from those same cells.

There are four basic components that comprise human blood: plasma, red blood cells, white blood cells, and platelets.

Blood is circulated around the body through blood vessels by the pumping action of the heart.

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Updated on: 10-Oct-2022

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