Serratus Posterior Superior

Description

Serratus Posterior Superior

General

• Serratus Posterior Superior
• Musculus serratus dorsalis cranialis
• Musculus serratus posterior superior

General

• Muscle that originates on the spinous process of the neck and upper back and inserts on the ribs
• Contributes to respiration and assists with vertebral rotation

Origin

• Nuchal ligament
• Spinous process of vertebrae C7-T3

Insertion

• Superior border of ribs 2-5

Actions

• Elevation of ribs during inspiration
• Rotation of vertebrae to opposite side

Vascular Supply

• Posterior intercostal arteries

Innervation

• Ventral rami of intercostal nerves T2-T5

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Clinical Significance

• Myofascial Pain Syndrome

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See Also

• Physical Exam Back
• Back Anatomy Main
• Back Pain Main

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