Pyramidalis - Podcast Version TeachMeAnatomy 0:00 / 0:00 1x 0.25x 0.5x 0.75x 1x 1.25x 1.5x 1.75x 2x The pyramidalis is a muscle of the anterior abdominal wall. It is a paired, triangular muscle, located superficial to the rectus abdominis. Attachments: Originates from the pubic crest and pubic symphysis before inserting onto the linea alba. Actions: Tenses the linea alba. Innervation: Subcostal nerve (T12). Blood supply: Inferior epigastric artery. Adobe Stock, Licensed to TeachMeSeries Ltd Fig 1The pyramidalis muscle of the anterior abdominal wall. 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 Pro Feature - Dissection Images Dissection of the anterolateral abdominal wall Dissection of the anterolateral abdominal wall You've Discovered a Pro Feature Access our Dissection Image Library Enhance your understanding with high-resolution dissection images showcasing real-life anatomy. Learn More Rate This Article