Levatores_costarum

Levatores costarum muscles

Levatores costarum muscles

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The levatores costarum (/ˌlɛvəˈtɔːriːz kəˈstɛərəm/), twelve in number on either side, are small tendinous and fleshy bundles, which arise from the ends of the transverse processes of the seventh cervical and upper eleven thoracic vertebrae

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They pass obliquely downward and laterally, like the fibers of the Intercostales externi, and each is inserted into the outer surface of the rib immediately below the vertebra from which it takes origin, between the tubercle and the angle (Levatores costarum breves).

Each of the four lower muscles divides into two fasciculi, one of which is inserted as above described; the other passes down to the second rib below its origin (Levatores costarum longi).

They have a role in forceful inspiration.[1]

See also

References

  1. [1]
    "Thoracic wall" (PDF).

Public domain This article incorporates text in the public domain from page 403 of the 20th edition of Gray's Anatomy (1918)


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This article uses material from the Wikipedia article Levatores_costarum, and is written by contributors. Text is available under a CC BY-SA 4.0 International License; additional terms may apply. Images, videos and audio are available under their respective licenses.