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The Circulatory System

Part one of term paper
in anatomy and physiology is the course taken by the blood through the arteries, capillaries, and veins and back to the heart. In humans and the higher vertebrates, the heart is made up of four chambers the right and left auricles, or atria, and the right and left ventricles. The right side of the heart pumps oxygen-poor blood from the cells ...

Part two of term paper
... circulation is where the blood from the entire body is transported to the right auricle through two large veins. The superior vena cava and the inferior vena cava. When the right auricle contracts, it forces the blood through an opening into the right ventricle. Contraction of this ventricle drives the blood to the lungs. Blood is prevented from returning into the auricle by the tricuspid valve, which completely closes during contraction of the ventricle. In its passage throug ...

Word count: 1389 | Approximate pages: 6

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