Answer:
The pulmonary artery and pulmonary vein carry oxygen from your lungs to your heart. It oxygenates your blood so that it can circulate throughout your body.
This removes CO2 from your body, preventing suffocation. Too much CO2 in the blood causes you to pass out, and if left untreated for too long, it can lead to tissue death.
Explanation:
To operate, the body needs oxygen. Each breath uses around 20% of the oxygen available to us. More when you're working out.
1. The Pulmonary Artery transports blood that has been deoxygenated by the muscles and organs. The red blood cells release carbon dioxide into the lungs. The oxygen in the lungs then replenishes the red blood cells. The blood is subsequently returned to the heart and circulated throughout the body via the Aorta.
2. It's worth noting that the Pulmonary Artery is the sole artery that carries deoxygenated blood, whereas the Pulmonary Vein carries oxygenated blood.
