The heart pumps oxygenated blood to the body and deoxygenated blood to the lungs. Hemocyanin is colorless when deoxygenated and dark blue when oxygenated. This should eliminate any mixing of oxygenated and deoxygenated blood in the right ventricle. Oxygen opens rings and cleaves sidechains giving a complex mixture of small oxygenated molecules. But bronchial circulation supplies fully oxygenated arterial blood to the lung tissues themselves. Extracorporeal membrane oxygenation may be used in those who cannot be oxygenated otherwise. The aorta distributes oxygenated blood to all parts of the body through the systemic circulation. This all occurs in the lungs where blood is oxygenated. The ovarian artery is an artery that supplies oxygenated blood to the ovary in females. Unconsciousness occurs within 10 seconds without circulating oxygenated blood (brain ischemia). Cholesterol is susceptible to oxidation and easily forms oxygenated derivatives called oxysterols. Blood flows from the heart to the gills where it is oxygenated. The bands were produced at the tipping point between an anoxic and an oxygenated ocean. They carry blood that is oxygenated after it has been pumped from the heart. Without oxygenated blood, the heart muscle begins to die.