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7.02 Respiratory and Circulatory System.
Transcript of 7.02 Respiratory and Circulatory System.
By: Jamie Thompson.
The red blood cell starts its life at the bone marrow. It is there along with its siblings (white blood cells and platelets).
The red blood cell is especially made with hemoglobin to attract oxygen. Luckily the red blood cell does not use cellular respiration.
Through the blood.
After coming out the bone marrow the red blood cell makes its way into the blood taking up most its space, along with plasma. This blood makes its way though the vein capillaries, and eventually the arteries. This new deoxygenated blood is ready to be filtered by the heart.
In the heart.
Now the heart is ready to send this blood for pulmonary circulation to the lungs.
To the lungs.
Now at the lung and in the alveoli the red blood cell has picked up the oxygen it needs to carry also witnessing what carbon dioxide is. Now this oxygenated blood is sent back to the heart.
Back to the heart.
Now this newly oxygenated blood is filtered though the heart, and sent throughout the entire body, brains and all which is called the systematic circulation. Now the job is done.
Well not really. This little red blood cell will keep doing this for the rest of its life to keep the human body functioning right.