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प्रश्न
Very short answer question.
Why does trachea have ‘C’ shaped rings of cartilage?
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उत्तर
The trachea has ‘C’ shaped rings of cartilage as they prevent the trachea from collapsing.
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संबंधित प्रश्न
During heavy exercise, the breathing rate of a person slows down.
The volume of air in the lungs and the rate at which it is exchanged during inspiration and expiration was measured.
The following diagram shows a group of the lung volumes and capacities.
Study the diagram carefully and explain briefly the following :
Inspiratory reserve volume (IRV)
Why is the respiratory system necessary?
Explain the process of Cellular Respiration.
What is breathing?
Name the following:
Sound producing organ.
Match the following.
| 1. | Digestive System | Kidney |
| 2. | Respiratory system | Brain |
| 3. | Circulatory system | Alimentary canal |
| 4. | Excretory system | Heart |
| 5. | Nervous System | Lungs |
Pick the odd one out from the group given below on the basis of respiratory organ. Give reason for your answer.
A fluid filled double membranous layer surrounds the lungs. Name it and mention its important function.
Measure the breathing rate of the members of your family and some of your friends. Investigate:
- If the breathing rate of children is different from that of adults.
- If the breathing rate of males is different from that of females If there is a difference in any of these cases, try to find the reason.
