prepare a table showing the respiratory movements and its activities
Answers
Answer:
Breathing involves two stages :
• Inspiration during which atmospheric air is drawn in and expiration
by which the alveolar air is released out.
INSPIRATION
1. Diaphragm contracts.
2. Volume of thoracic chambers increases in anterio posterior axis.
3. External inter coastal muscles contracts.
4. The ribs and the sternum raised.
5. Volume of thoracic chamber increases in dorso ventral axis
6. Pulmonary volume increases.
7. Intra pulmonary pressure becomes less than atmospheric pressure.
8. Air from outside move in to the lungs.
EXPIRATION
1. Diaphragm and inter costal muscles relaxes
2. Thoracic and pulmonary volume decreases.
3. Intra pulmonary pressure increases above the atmospheric pressure
4. Air from lungs expelled
Explanation:
Answer:
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