Hello I'm Robbie the red blood cell. We're currently in the brain right now. I have just delivered oxygen to Bob the brain cell here. Now i'm heading to my friend Tina the toe cell because she needs some oxygen too
The Right Side
I am currently in the right atrium after passing through the Vena Cava. Now I am going to pass through the right AV valve and go into the right ventricle of the heart.
I was just in the right ventricle of the heart only to get pumped to the left and right pulmonary arteries which brought me here to the capillaries in the lung. Over here I will pick up oxygen for Tina while getting rid of the carbon dioxide.
Robbie just learned that Tina needs some oxygen so Robbie passes through a vein which brings him to the heart.
The Left Side
After picking up the oxygen i traveled to the left atrium and now i am going to get pumped through the left AV valve into the left ventricle. Once I'm in the left ventricle I will pass through the aortic valve into the aorta which will pump me to TIna!
In order to get oxygen Robbie passed through the vena cava into the right atrium since Robbie is currently deoxygenated. After this Robbie passes through the right atrioventricular valve so he can get into the right ventricle. Once Robbie is in the right ventricle he is pumped to the left and right pulmonary arteries.
Hi Tina! I've brought you your oxygen! I'll take that carbon dioxide too
Robbie has just entered the lung capillaries where he will pick up oxygen and get rid of the carbon dioxide he is carrying. After this Robbie will return to the heart and enter the left atrium though 4 pulmonary veins
Now that I've given Tina her oxygen I'm going to go back to the heart to give all my other friends oxygen!
Robbie entered the left ventricle by passing through the left atrium and AV valve. This allows Robbie to pass through the aortic valve and into the aorta which is the largest artery and it will bring him to Tina.
Finally Robbie reaches Tina and is able to give her the oxygen she needs and at the same time takes out the toxic carbon dioxide. Now Robbie has to return back from the way he came.
Thank you Robbie!!
After Robbie delivers oxygen to Tina he must go give more friends oxygen so he travels through a vein which leads back to the vena cava into the right atrium of the heart. Robbie continues to repeat this cycle so all his friends can get oxygen.