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प्रश्न
Very short answer question.
Why is a gas exchange very rapid at the alveolar level?
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उत्तर
Alveoli are lined by layer of simple squamous epithelial epithelium. This thin, single layer of epithelium allows the rapid exchange of gases in alveolar region.
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संबंधित प्रश्न
Distinguish between inspiration and expiration.
Intercostal muscles are found between the ______.
During inspiration, the diaphragm ______.
Make the correct pairs.
| Column – I | Column – II |
| (P) Tidal volume | i. 1000 to 1100 ml |
| (Q) Residual volume | ii. 500 ml |
| (R) Expiratory reserve volume | iii. 2500 to 3000 ml |
| (S) Inspiratory reserve volume | iv. 1100 to 1200 ml |
____________ in mammals do not help in respiration.
Which of the following is correct regarding pneumotoxic centres?
What is the vital capacity of our lungs?
Listed below are four respiratory capacities (1 - 4) and four jumbled respiratory volumes of a normal human adult
| Respiratory Capacities | Respiratory Volumes |
| 1. Residual volume | 2500 mL |
| 2. Vital capacity | 5500 mL |
| 3. Inspiratory sore volume | 1200 mL |
| 4. Total Lung capacity | 4500 mL |
Which one of the following is the correct matching of two capacities and volumes?
What is oxygen dissociation curve?
Interpret the given diagrams A and B. Enlist the changes occuring, during inspiration and expiration.
