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.
So, the oxygen reaches each and every cell of the body. The blood stream enters a cell (the stream is flowing in the capillary level now), the oxygen is extracted out by the cell, and CO2 is attached with the haemoglobin, which finds its way back to the lung. So, we're living because there's oxygen.