During the process of exhalation, the ribs move (a) down and inwards. (b) up and inwards. (c) down and outwards. (d) up and outward.
ScienceClass 7CBSEAnswered 27 Mar 2026
Answer
Soln:
The answer is (a) down and inwards.
Explanation:
During exhalation, the diaphragm moves up, and ribs move downwards and inwards, decreasing the space in the chest cavity, this increases the air pressure inside the lungs and forces the air out of the lungs.
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