Question
Differentiate between:
(i) Inhalation and Exhalation
Solution
|
Inhalation |
Exhalation |
|
1. It is the process of taking air into the lungs. |
1. It is the process of giving out the air from the lungs. |
|
2. The external intercostal muscles contract, raising the ribs forward and upwards. |
2. The internal intercostal muscles contract and the ribs take their normal position. |
|
3. The muscles of the diaphragm contract and make it straight. |
3. The muscles of the diaphragm relax and it comes to its original dome shaped position. |
|
4. The abdominal muscles relax and allow compression of the abdominal organs. |
4. The abdominal muscles contract and the diaphragm pushes upward. |
