intercostal muscle

(redirected from internal intercostal muscle)
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Related to internal intercostal muscle: External intercostal muscles, innermost intercostal muscle
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Noun1.intercostal muscle - muscles between the ribsintercostal muscle - muscles between the ribs; they contract during inspiration
skeletal muscle, striated muscle - a muscle that is connected at either or both ends to a bone and so move parts of the skeleton; a muscle that is characterized by transverse stripes
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
The internal intercostal muscles are innervated by the spinal nerves T1 to T12 and the abdominals by spinal nerves T7 to L1.
For expiration beyond what the natural recoil of the chest allows, we involve our numerous abdominal and internal intercostal muscles to help pull the ribs downward to further reduce thoracic volume.
The internal intercostal muscles assist in forced expiration by pulling the ribs downward and inward.

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