PATHOLOGY

Detailed explanation-1: -When you breathe, you take oxygen into your lungs as you inhale, and you release carbon dioxide and water vapor as you exhale. Cellular respiration is the process in which the cells of living things use oxygen to break down glucose for energy, releasing carbon dioxide and water as waste.

Detailed explanation-2: -Within the lungs, the bronchi branch into smaller bronchi and even smaller tubes called bronchioles (pronounced: BRAHN-kee-olz). Bronchioles end in tiny air sacs called alveoli, where the exchange of oxygen and carbon dioxide actually takes place. Each person has hundreds of millions of alveoli in their lungs.

Detailed explanation-3: -Both water vapor and carbon dioxide are important greenhouse gases that play a crucial role in atmospheric warming. A greenhouse gas is a gas that absorbs and re-emits infrared radiation in Earth’s atmosphere, thereby increasing temperatures.

Detailed explanation-4: -In the human body, carbon dioxide is formed intracellularly as a byproduct of metabolism. CO2 is transported in the bloodstream to the lungs where it is ultimately removed from the body through exhalation.