cicurlatory Systam

Is what do ours blood move and bring oxygen and nutrients to all the cells of an animal body.

The Heart: Is the nucleus of this system and is made of muscle tissue.

Obs.: That it what move ours blood.

Arteries: this it is what take the blood about of the body.

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Circulatory System Rap
In humans, the heart is divided into four sections or chamber the blood takes the oxygen and convert to carbon. The blood returns to the heart through the left atrium , then passes to the left ventricle. The left ventricle is the largest and thickest chamber . Animals have different types of heart and circulatory system but the structure can vary . An earthworm has five hearts but each have only one chamber