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.
From the aorta, the oxygenated (or red blood, as it is sometimes known) enters the capillaries, where diffusion of oxygen and other substances occur. From here, the oxygen can be used in cellular respiration-in muscles, for example.The blood in the capillaries therefore loses all the oxygen it once carried, so is now referred to as blue blood. From the capillaries, it enters the Vena Cava (the vein that carries the deoxygenated blood back to the heart).From the heart, the blood is pumped back to the lungs, through the pulmonary artery-where the blood picks up yet more oxygen to repeat the process.rom the capillaries, it enters the Vena Cava (the vein that carries the deoxygenated blood back to the heart). From the heart, the blood is pumped back to the lungs, through the pulmonary artery-where the blood picks up yet more oxygen to repeat the process.