Question

question 12 1 pts which of the following actions increase the volume of the lungs? air pressure increases in the lungs the diaphragm flattens and moves downward gases move from areas of lower pressure the rib cage becomes smaller

Explanation:

When the diaphragm flattens and moves downward during inhalation, it increases the volume of the thoracic cavity, which in turn increases the volume of the lungs. An increase in lung - air pressure would decrease lung volume, gases move from high to low pressure during normal respiration, and a smaller rib - cage would decrease lung volume.

Answer:

the diaphragm flattens and moves downward