Question

1.State the role of the following in the process of respiration in humans: (i) Nostrils, (ii) Diaphragm, (iii) Alveoli 2.What is residual volume? Mention its importance. 3.What is the importance of rings of cartilage in Trachea? please answer in detail

Answer 1

Answer:

1- Nostrils- our nose has two holes called nostrils. The air for respiration is drawn into our body through nostrils present in our nose . this air goes into the nassal passage

Diaphragm- it's a dome shaped structure below the lungs that controls breathing.

Alveoli -each time you breathe in the alveoli fill with air , making the lungs expand .

2- it's a amount of air that remains in a person lungs after fully exhaling.its importance is to keep the alveoli open even after maximum respiration.

3- in the treachea there are cartilage rings that helps to support the treachea while still allowing it to move and flex during breatin .cartilage trachea is strong but flexible tissue.