Topic: Food Energy and Respiration Subtopic: How we breathe?
What happen when we exhale?
Answer: When we exhale, the diaphragm muscles move upwards and the rib cage is pushed downwards and inwards. This decreases the volume of lungs, forcing the air out of the lungs.
Learn also:
- What is major component of respiration?
- What is an artery?
- What happens to food in stomach?
- Why are pacemaker cells important?
- What is job of plasma?
- Which enzyme acts on food in stomach?