Erector spinae muscle (anatomy)
The erector spinae is the largest muscle mass of the back. It lies in the intermediate layer of intrinsic back muscles.
It is divided into three longitudinal columns:
- iliocostalis muscle
- longissimus muscle
- spinalis muscle
Acting unilaterally, the three muscle groups act to laterally flex the ipsilateral spine. Bilateral contraction as a unit flexes the spine.
Related pages
Create an account to add page annotations
Add information to this page that would be handy to have on hand during a consultation, such as a web address or phone number. This information will always be displayed when you visit this page