Do you use muscles to sing?
Isabella Harris
Updated on January 12, 2026
The internal intercostal muscles work opposite to the external intercostal muscles. They also run in between the ribs but, when they contract, they pull the ribcage down and in and cause exhalation. Typically, singers only use the internal intercostals at the ends of very long or extremely Page 5 loud phrases.
intercostal muscles
Intercostal muscles are many different groups of muscles that run between the ribs, and help form and move the chest wall. The intercostal muscles are mainly involved in the mechanical aspect of breathing by helping expand and shrink the size of the chest cavity.
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