Question

During the process of exhalation, the ribs move ______.

Options

• down and inwards.

• up and inwards.

• down and outwards

• up and outward.

Answer 1

During the process of exhalation, the ribs move 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.