Organs Involved in Human Respiration Video Lecture

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Organs Involved in Human Respiration

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	Biology for Grade 9 51 videos\|116 docs\|24 tests

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FAQs on Organs Involved in Human Respiration Video Lecture - Biology for Grade 9

1. What are the main organs involved in human respiration?

Ans. The main organs involved in human respiration are the lungs, diaphragm, trachea, bronchi, and alveoli.

2. How does the diaphragm function in the process of respiration?

Ans. The diaphragm is a muscle that contracts and relaxes to help in the process of breathing. When it contracts, it moves downward, which increases the volume of the chest cavity and allows air to enter the lungs.

3. What is the role of the alveoli in the respiratory system?

Ans. The alveoli are tiny air sacs in the lungs where the exchange of oxygen and carbon dioxide takes place. Oxygen from the air we breathe diffuses into the blood, while carbon dioxide from the blood diffuses into the alveoli to be exhaled.

4. How does the trachea help in the process of respiration?

Ans. The trachea, also known as the windpipe, carries air from the nose and mouth to the lungs. It is lined with tiny hairs called cilia that help to filter out dust and other particles before they reach the lungs.

5. Why is it important for the bronchi to be clear and unobstructed for proper respiration?

Ans. The bronchi are the main airway passages that lead from the trachea to the lungs. If they become blocked or obstructed, it can prevent air from reaching the lungs, leading to difficulty breathing and potentially causing respiratory issues.

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