Mechanics Of Breathinh

Question 1

When u breathe out ..

Answer 1

1. Diaphragm relaxes and rises to its dome shape
   2.intercostal muscles relax and rib cage moves down

Question 2

When u breathe in ..

Answer 2

1. Diaphragm moves downward and flattens
2. Intercostal muscles contract

Question 3

Air goes in..

Answer 3

Inspiration

Question 4

Air goes out

Answer 4

Expiration

Question 5

Why does this happen

Answer 5

Due to change in pressure inside lungs