ANATOMY

Detailed explanation-1: -Carbon dioxide (CO2) is a waste product of cellular metabolism. You get rid of it when you breathe out (exhale). This gas is transported in the opposite direction to oxygen: It passes from the bloodstream – across the lining of the air sacs – into the lungs and out into the open.

Detailed explanation-2: -When you inhale (breathe in), air enters your lungs, and oxygen from that air moves to your blood. At the same time, carbon dioxide, a waste gas, moves from your blood to the lungs and is exhaled (breathed out).

Detailed explanation-3: -At each cell in your body, oxygen is exchanged for a waste gas called carbon dioxide. Your bloodstream then carries this waste gas back to the lungs where it is removed from the bloodstream and then exhaled. Your lungs and respiratory system automatically perform this vital process, called gas exchange.

Detailed explanation-4: -Oxygen must pass from our lungs into our blood for our tissues and organs to work properly. Buildup of carbon dioxide can damage tissues and organs and prevent or slow oxygen delivery to the body. Respiratory failure can also develop slowly. When it does, it is called chronic respiratory failure.

Detailed explanation-5: -Mild symptoms may include headaches, dizziness, and fatigue. In more severe cases, you may experience difficulty breathing, irregular heartbeat, seizures, or respiratory failure. Severe symptoms of hypercapnia require immediate medical attention.