My best guy friend is in the hospital.. Okay so my best friend in the whole world is in the hospital, he's been in there for a while now.. and I'm going to visit him tomorrow. I want to bring him a present..like a get well soon card, and then just a random present.y best guy friend is in the hospital.. Okay so my best friend in the whole world is in the hospital, he's been in there for a while now.. and I'm going to visit him tomorrow. I want to bring him a present..
Quick Answer. Oxygen travels through the human body by being bonded to the iron in a special molecule in blood cells called hemoglobin. This is necessary because, unlike carbon dioxide, oxygen dissolves very poorly in water.
Inside the air sacs, carbon dioxide moves from the blood into the air. At the same time, oxygen moves from the air into the blood in the capillaries. The oxygen-rich blood then travels to the heart through the pulmonary vein and its branches. The heart pumps the oxygen-rich blood out to the body.