The rectus and transverse abdominis and the oblique muscles are engaged during exhalation - Image Details
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The rectus and transverse abdominis and the oblique muscles are engaged during exhalation

The rib cage muscles, including the intercostals, the parasternals, the scalene and the neck muscles, mostly act on the upper part of the rib cage and are both inspiratory and expiratory. 3D rendering

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Username: Eaindustry

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Image ID: 273029045