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The diaphragm & the external intercostal muscles (the muscles between the ribs that course downward) are the two most important muscles of inhalation, but there are many other muscles that also contribute to this process.

Other muscles of inhalation include:

-Pectoralis major

-Pectoralis minor

-Serratus anterior

-Costal levators

-Subclavius

-Serratus posterior superior

-Serratus posterior inferior

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15y ago

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What is the physical relationship of the intercostal muscles to each other?

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