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Muscles of the neck
Mm. Laterales colli
Muscle | Origin | Insertion | Function |
---|---|---|---|
M. Scalenus anterior | Proc. transversus vertebrae cervicalis III-VI | Tuberculum m. scaleni anterioris costa I | Bilateral contraction: Bends the neck forward; Unilateral contraction: Bends the neck to the same side; Acts in inspiration |
M. Scalenus medius | Proc. transversus vertebrae cervicalis I-VII | Facies superior costa I (behind sulcus a. subclaviae) | Bilateral contraction: Bends the neck forward; Unilateral contraction: Bends the neck to the same side; Acts in inspiration |
M. Scalenus posterior | Proc. transversus vertebrae cervicalis V-VII | Costa II | Bilateral contraction: Bends the neck forward; Unilateral contraction: Bends the neck to the same side; Acts in inspiration |