Question
Describe the Process of inhalation in mammals.
Answer
- The external intercostal muscles contract, and simultaneously, the internal intercostal muscles relax.
- This action leads to the ribs moving upwards and outward.
- Contraction of the diaphragm muscles causes the diaphragm to flatten.
- As a result of these coordinated movements, the thoracic cavity's volume increases, leading to a decrease in pressure within it.
- Due to the higher atmospheric pressure compared to the pressure within the thoracic cavity, air rushes into the lungs through both the nasal passages and the trachea.
- This process results in the inflation of the lungs.
- This action leads to the ribs moving upwards and outward.
- Contraction of the diaphragm muscles causes the diaphragm to flatten.
- As a result of these coordinated movements, the thoracic cavity's volume increases, leading to a decrease in pressure within it.
- Due to the higher atmospheric pressure compared to the pressure within the thoracic cavity, air rushes into the lungs through both the nasal passages and the trachea.
- This process results in the inflation of the lungs.
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