This is just a little skit I made to help me study for a science test. Hope you enjoy! See below for a detailed description.
Here is what actually happens: First, the red blood cells are produced in the bone marrow. Then, they travel through veins to the heart. They go through the Superior Vena Cava, and into the Right Atrium of the heart. In the Right Atrium, there is a valve, the Tricuspid Valve. The blood flows through it, and into the Right Ventricle. From there, it travels through the Pulmonary Valve, and into the Pulmonary Artery. The cells go either left or right, into the lungs. There is a capillary that passes next to the lung, where the Oxygen can pass into the Red Blood Cells. The blood cell goes back to the heart, where it flows into the Left Atrium. Then, it passes through the Mitral Valve to the Left Ventricle. When the Left Ventricle contracts, the blood flows through the Aortic Valve, and through the Aorta, to the body. The capillaries in the body make the blood able to give oxygen to the target organ. Finally, the blood repeats the process.
