The anterior scalene is one of the scalene muscles of the neck. It is located deep to the sternocleidomastoid muscle on the lateral aspect of the neck. Attachments: Originates from the anterior tubercles of the transverse processes of C3-C6 and attaches onto the scalene tubercle (on the inner border of the first rib). Function: Elevation of the first rib. Ipsilateral contraction causes ipsilateral lateral flexion of the neck, and bilateral contraction causes anterior flexion of the neck. Innervation: Anterior rami of C5-C6. 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 Print Article Rate This Article