Origin: Transverse process

Insertion: Transverse process

Artery: Lateral sacral artery

Nerve: Posterior branch of spinal nerve

Antagonist: Rectus abdominis muscle

This definition incorporates text from a public domain edition of Gray's Anatomy (20th U.S. edition of Gray's Anatomy of the Human Body, published in 1918 – from


Download e-Anatomy

Mobile and tablet users, you can download e-Anatomy on Appstore or GooglePlay.

e-Anatomy on Appstore e-Anatomy on Googleplay

From other publishers