Question

The figure shows human lung:
i) Label parts 1-4.
ii) Which phase of breathing is shown here?​

Answer 1

Answer:

inhalation

Explanation:

when we inhale our thoracic cavity expand so that the diaphragm held upward to help in the mechanism of intake oxygen in the lungs cavity

Answer 2

Answer:

i)

1- trachea (windpipe)

2-Ribcage

3-diaphragm

4-backbone

ii) it's show expiration