These muscles extend inferomedially from the superior rib to an adjacent inferior rib,and are involved in elevating the ribs during inhalation.
A)Internal intercostals
B)External intercostals
C)Transversus thoracis
D)Diaphragm
E)Serratus posterior inferior

Question

Quizplus · Accepted Answer

The external intercostal muscles extend inferomedially from the superior rib to an adjacent inferior rib and are involved in elevating the ribs during inhalation. The internal intercostal muscles run in the opposite direction and are involved in depressing the ribs during exhalation. The transversus thoracis, diaphragm, and serratus posterior inferior are not directly involved in rib movement during inhalation.

These Muscles Extend Inferomedially from the Superior Rib to an Adjacent