Name the following.

1. Respiratory process in which oxygen is not utilized.
2. Respiratory process in which oxygen is utilized.
3. The microscopic air-sacs of the lungs.
4. The two membranes which protect the lungs.
5. Six main parts of the human respiratory system.
6. Two types of respiration.
7. Three phases of respiration.
8. Two steps of breathing.
9. Three common respiratory diseases.

The muscular sheet which divides the body cavity into thorax and abdomen is termed as :

1. Inner pleura
2. Rib cage
3. Outer pleura
4. Diaphragm

The basic structural and functional unit of the lungs is :

1. Pleura
2. Alveolus
3. Capillary
4. Diaphragm

Which of the following is not a part of the respiratory system ?

1. Nostrils
2. Lungs
3. Mouth
4. Trachea