All of the Following Elevate the Ribs EXCEPT ________

Question

All of the following elevate the ribs EXCEPT ________.
A) external intercostals
B) internal intercostals
C) scalene
D) serratus posterior superior

Accepted Answer

The internal intercostals primarily function in forced expiration, not in elevating the ribs, which is a function associated with inhalation. The external intercostals, scalene muscles, and serratus posterior superior all assist in elevating the ribs during inhalation.