NEET 2013
- Exam
- NEET
- Year
- 2013
- Subject
- Zoology
- Chapter
- Breathing and Exchange of Gases
NEET 2013 · Zoology · Breathing and Exchange of Gases
The figure shows a diagrammatic view of human respiratory system...
The figure shows a diagrammatic view of human respiratory system with labels and . Select the option, which gives correct identification and main function and/or characteristic.
Options
- AA-trachea-long tube supported by complete cartilaginous rings for conducting inspired air
- BB-pleural membrane-surround ribs on both sides to provide cushion against rubbing
- CC-alveoli-thin walled vascular bag-like structures for exchange of gases
- DD-lower end of lungs-diaphragm pulls it down during inspiration
Correct answer
C. C-alveoli-thin walled vascular bag-like structures for exchange of gases
Step-by-step solution
C-Alveoli are thin-walled vascular bag-like structures for exchange of gases. A-trachea or wind pipe is an air conducting tube through, which transport of gases takes place. B-pleural membrane is double layered, which reduces friction on the lung surface. D-diaphragm is involved in the inspiration and expiration process of breathing.