Muscles of the Posterior Triangle Flashcards by Nathan Mulroy | Brainscape

Q

Anterior Scalene

A

Origin: transverse processes of cervical vertebrae

Insertion: 1st rib

Innervation: ventral rami of the cervical plexus

Action: laterally bends the neck, elevates the 1st rib

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Q

Middle Scalene

A

Origin: transverse processes of cervical vertebrae

Insertion: 1st rib

Innervation: ventral rami of the cervical plexus

Action: laterally bends the neck, elevates the 1st rib

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Q

Posterior Scalene

A

Origin: transverse processes of cervical vertebrae

Insertion: 2nd rib

Innervation: ventral rami of the cervical plexus

Action: laterally bends the neck, elevates the 2nd rib

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Q

Levator Scapulae

A

Origin: C1-C4 transverse processes

Insertion: medial border of the scapula above the spine

Innervation: dorsal scapular n.

Action: moves the shoulder girdle

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