ANATOMY

Detailed explanation-1: -The lungs and respiratory system allow us to breathe. They bring oxygen into our bodies (called inspiration, or inhalation) and send carbon dioxide out (called expiration, or exhalation).

Detailed explanation-2: -To breathe in (inhale), you use the muscles of your rib cage – especially the major muscle, the diaphragm. Your diaphragm tightens and flattens, allowing you to suck air into your lungs. To breathe out (exhale), your diaphragm and rib cage muscles relax. This naturally lets the air out of your lungs.

Detailed explanation-3: -Your liver is an organ below your lungs. It acts like a filter for the blood. Chemicals and impurities are filtered by the liver, including from drugs and medications.

Detailed explanation-4: -Breathing sustains life by providing oxygen needed for metabolism and removing the by-product of these reactions, carbon dioxide. It is also one of the major regulators of pH within the body and has influence over the autonomic nervous system, circulatory system and metabolism.