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7.02 Respiratory and Circulatory
Transcript of 7.02 Respiratory and Circulatory
Red Blood Cells: Starting Point
Red blood cells are produced in bone marrow. We contain the more red blood cells in our body then any other blood cell. Red blood cells contain hemoglobin which is a protein that binds oxygen as it diffuses into the cells.
Traveling through the blood:
After being made in the bone marrow, the red blood cells going into the blood as well as plasma. It travels through the veins, capillaries and arteries. After this the de-oxygenated blood is ready to be filtered by the heart.
In the Heart:
When the blood is returned to the heart it slides past and through the larger veins and reaches the right atrium. There it enters the right atrium which move it to the pulmonary arteries into the lungs. When it is moved through the lungs it allows the blood to be pick up oxygen.
After the blood has gotten more oxygen the blood re-enters the left atrium and them moves into the left ventricle. The red blood cell journey then re-starts again :)