Posterior Scalene - Podcast Version TeachMeAnatomy 0:00 / 0:00 1x 0.25x 0.5x 0.75x 1x 1.25x 1.5x 1.75x 2x The posterior scalene is one of the scalene muscles of the neck. It is the smallest and the deepest of the scalene muscles. Attachments: Originates from the posterior tubercles of the transverse processes of C5-C7 and attaches into the second rib. Function: Elevation of the second rib, and ipsilateral lateral flexion of the neck. Innervation: Anterior rami of C6-C8. Blood Supply: Ascending cervical branch of inferior thyroid artery By TeachMeSeries Ltd (2025) Fig 1The anterior, middle and posterior scalene muscles of the neck Pro Feature - 3D Model You've Discovered a Pro Feature Access our 3D Model Library Explore, cut, dissect, annotate and manipulate our 3D models to visualise anatomy in a dynamic, interactive way. Learn More Rate This Article