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प्रश्न
Whenever we feel drowsy or sleepy, we start yawning. Does yawning help us in any way?
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उत्तर
During drowsiness, our breathing rate slows down. The lungs do not get enough oxygen from the air resulting in yawning. Yawning brings extra oxygen into the lungs and removes more carbon dioxide and thus, helping us to keep awake.
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संबंधित प्रश्न
Differentiate between cyclic and non-cyclic photophosphorylation.
Define total lung capacity.
Define Hamburger’s phenomenon. Add a note on it.
Vital capacity is ______.
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 |
Assertion: During inhalation, the diaphragm goes downward.
Reason: The volume of the thoracic cavity decreases.
In HMP shunt, number of molecules of CO2 evolved are ______.
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.
