Question

During exhalation, the ribs move ________.

Answer 1

Events during exhalation:

1. Exhalation is expelled out of the air from the body.
2. It is the transfer of air from the lungs to the atmosphere.
3. The diaphragm relaxes at this time.
4. It rises into the chest cavity.
5. The intercostal muscles get relaxed.
6. Carbon dioxide is pushed out from the lungs, windpipe, and nose.
7. As the muscles get relaxed, they move their rib cage downwards and inwards.
8. Therefore the ribs move downward at the time of exhalation.

Final answer: During exhalation, the ribs move downwards.