Tuesday 17 December 2019

What is YOUR Body CIRCULATORY SYSTEM. +2347065221108

What is YOUR Body CIRCULATORY SYSTEM

The circulatory system is composed of cardiovascular system including arteries, veins, capillaries which distribute blood & lymphatic system which distributes lymph. It functions to pass nutrients like amino acids, electrolytes, gases, hormones, blood cells, etc. to & from cells in the body to help fight diseases & help stabilize body temperature & pH to maintain homeostasis.

The blood is oxygenated when tiny blood vessels, called capillaries, absorb O2 from the lungs & in turn discharge CO2, which we then exhale.

These blood vessels feed into the heart, which pumps the oxygenated blood to all cells. At the cells the blood vessels once more become a network of extremely thin capillaries, which give off oxygen plus other nutrients & in return receive waste products. Oxygen plus glucose is needed to make energy within every cell of the body; the waste products are CO2 & water.

The blood vessels that supply cells with nutrients & oxygen are called arteries,while the blood vessels that carry away waste products & CO2 are called veins. Returning to the heart after it has visited the cells, all blood passes through the kidneys. Here, waste products are removed, & formed into urine that is stored in the bladder.

The human heart maintaining the circulation of cardiovascular system is a chambered, muscular organ that pumps blood from veins into the arteries by repeated, rhythmic contractions.

Mrs Olubola Adeleye. +2347065221108

1 comment:

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