Topic: Food Energy and Respiration Subtopic: How we breathe?
What happens to chest when we inhale?
Answer: When we inhale, the diaphragm is pulled down and the rib cage moves upwards and outwards. The space inside the chest gets bigger providing more volume for air to enter the lungs. The air rushes into the lungs filling the extra space created.
- Why is reproduction important?
- How is food absorbed?
- How long it takes to recover from heart transplant?
- Why large molecules cannot absorb into blood?
- What is Emphysema?
- Why is iron important?