Question
Question: The figure shows a diagrammatic view of human respiratory system with labels A, B, C and D. select t...
The figure shows a diagrammatic view of human respiratory system with labels A, B, C and D. select the option which gives correct identification and main function and/or characteristic
A
C – Alveoli – thin walled vascular bag like structures for exchange of gases
B
D- Lower end of lungs – diaphragm pulls it down during inspiration
C
A – Trachea – long tube supported by complete cartilaginous rings for conducting inspired air
D
B – Pleural membrane – surround ribs on both sides to provide cushion against rubbing
Answer
C – Alveoli – thin walled vascular bag like structures for exchange of gases