Iliocostalis Information
The iliocostalis is the muscle immediately lateral to the longissimus that is the nearest to the furrow that separates the epaxial muscles from the hypaxial. It lies very deep to the fleshy portion of the serratus ventralis (serratus anterior).
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Iliocostalis lumborum
The Iliocostalis lumborum ('Iliocostalis muscle'; Sacrolumbalis muscle) is inserted, by six or seven flattened tendons, into the inferior borders of the angles of the lower six or seven ribs.
Iliocostalis dorsi
The Iliocostalis dorsi (Musculus accessorius; Iliocostalis thoracis) arises by flattened tendons from the upper borders of the angles of the lower six ribs medial to the tendons of insertion of the Iliocostalis lumborum; these become muscular, and are inserted into the upper borders of the angles of the upper six ribs and into the back of the transverse process of the seventh cervical vertebra.
Iliocostalis cervicis
The Iliocostalis cervicis (Cervicalis ascendens) arises from the angles of the third, fourth, fifth, and sixth ribs, and is inserted into the posterior tubercles of the transverse processes of the fourth, fifth, and sixth cervical vertebrae.
See also
External links
- SUNY Figs 01:06-06 - "Intrinsic muscles of the back."
- LUC ili
- iliocostalis+%28muscle%29 at eMedicine Dictionary
- Dissection at ithaca.edu
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This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.
Categories: Muscles of the torso
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