ERECTOR SPINAE

Erector Spinae muscle

Origin of Erector Spinae

Spinous processes of T9-T12 thoracic vertebrae, medial slope of the dorsal segment of illiac crest.

Insertion of Erector Spinae

Spinous processes of T1 and T2 thoracic vertebrae and the cervical vertebrae.

Muscle Action/Function of Erector Spinae

Extends the vertebral column.

Arterial (Blood) Supply of Erector Spinae

Lateral sacral artery.

Erector Spinae Video

Muscles of the Back: The Erector Spinae group

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