When you inhale,the diaphragm moves ___ and the intercostal muscles move the rib cage ___.
A) downward...outward
B) outward...downward
C) outward...outward
D) downward...downward
E) outward...upward

Question

Quizplus · Accepted Answer

When we inhale, the diaphragm contracts and moves downward, creating more space in the chest cavity for the lungs to expand. At the same time, the intercostal muscles contract, pulling the rib cage upward and outward to increase the volume of air that can be taken in. Combining these two actions leads to a decrease in air pressure in the lungs, causing air to flow in.

When You Inhale,the Diaphragm Moves ___ and the Intercostal Muscles