There is some disagreement about the ability of a state to rescind an amendment ratification prior to full ratification. In U.S. history, thus far, no rescinded ratifications have made a difference in the long run, though they certainly have happened, especially to the Reconstruction Amendments, 13 through 15.
The Intercostal Muscles. These muscles are found between the ribs, and there are two kinds: the internal and external intercostals. The internal intercostal muscles (in the inside of the ribcase) extend from the front of the ribs, and go around back, past the bend in the ribs.
There are three principal layers; 1  External intercostal muscles aid in quiet and forced inhalation. 2  Internal intercostal muscles aid in forced expiration (quiet expiration is a passive process). 3  Innermost intercostal muscle, the deep layers of the internal intercostal muscles which are separated from them by a neurovascular bundle.