Let’s start at the very beginning of my journey when I was a baby in the bone marrow

Let’s start at the very beginning of my journey when I was a baby in the bone marrow. I was born with my friends the white blood cells. My friends were born with the ability to protect the body from any infectious disease or any foreign invaders. Me, on the other hand was born with the responsibility to carry oxygen throughout the body.
In order to make my job a little easier, I have my trusty sidekick, hemoglobin to help me out with attracting oxygen and giving me my beautiful red, rich color. Then I travel to my favorite places the heart and the lungs to drop off some carbon dioxide. This helps them with cellular respiration.
Then I prepare for my fun ride down into the pulmonary semilunar valve into the pulmonary trunk and through the two pulmonary arteries to the lungs, where I become oxygenated. Arteries are tubes which carry blood from the heart to other organs.
The arteries then split into capillaries which are smaller blood vessels. In the capillaries I am under minimal pressure and have the least velocity. Before any blood goes down the pulmonary vessel, I travel through the bicuspid valve to the left ventricle.
The left ventricle then sends me through the aortic semilunar valve into the aorta and then to the rest of the body!
I am in everyone’s body, if it weren’t for me it would be very difficult for oxygen to travel your body and keep you healthy and alive!