Serratus Posterior

Description

Serratus Posterior

Name

• Serratus Posterior Muscle Group

General

• Intermediate layer of back muscles
• Includes both serratus posterior inferior and superior
• Superior muscle group is cervical/thoracic
• Inferior muscle group is thoracic/lumbar

Muscles

• Serratus Posterior Inferior
• Serratus Posterior Superior

Innervation

• Ventral rami of Intercostal Nerves

Function

• Accessory muscles of respiration
• Unilateral: rotates spine to opposite side
• Bilateral: reduces extension of the thoracic vertebrae

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Clinical Significance

• Unknown

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See Also

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

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