ANATOMY

Detailed explanation-1: -What is respiration? Respiration is the act of breathing in and breathing out. When you inhale, you take in oxygen. When you exhale, you give off carbon dioxide.

Detailed explanation-2: -When we breathe, the respiratory system takes in oxygen and sends out carbon dioxide. The cells in our bodies need fresh oxygen to stay alive. As cells do their jobs, they make and give off carbon dioxide. This exchange of oxygen and carbon dioxide is called respiration.

Detailed explanation-3: -Respiration is not breathing. That is called ventilation . Respiration is a chemical reaction which occurs in every one of the cells in the human body. It releases energy stored in glucose and without it, these cells would die.

Detailed explanation-4: -Respiration. Respiration is the act of breathing: Inhaling. The act of breathing in oxygen.