Serratus Posterior Superior

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ATTACHMENTS:

• The serratus posterior superior attaches from the spinous processes of C7-T3 to ribs 2-5.

ACTIONS:

• The serratus posterior superior elevates ribs 2-5 at the sternocostal and costospinal joints.

NOTE:

1. There are two posterior serratus muscles: serratus posterior superior and serratus posterior inferior. There is one anterior serratus muscle: serratus anterior.
2. Generally muscles that elevate ribs act to create inspiration.