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प्रश्न
Whenever we feel drowsy or sleepy, we start yawning. Does yawning help us in any way?
उत्तर
During drowsiness, our breathing rate 1 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
Answer briefly the following:
What is the difference between breathing and respiration?
Short answer question.
Why is it advantageous to breathe through the nose than through the mouth?
In human respiration, chemical energy is released in the form of ______.
Explain the mechanism of breathing.
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 |
______ is formed when carbon monoxide combines with haemoglobin.
During inspiration, the inter-costal muscles ____________.
____________ in mammals do not help in respiration.
Identify the wrong statement with reference to the transport of oxygen.
