Skip to main content
Back

Lab 10: Muscles of the Abdominal Wall

Control buttons has been changed to "navigation" mode.
1/6

  • Rectus Abdominis

    Origin: pubis

    Insertion: sternum & ribs

    Action: flexes and rotates lumbar vertebrae & stabilizes pelvis

  • External Oblique

    Origin: Ribs 5-12

    Insertion: Ilium, pubis, & linea alba

    Action: flexes vertebrae and compresses abdomen & laterally rotates trunk

  • Internal Oblique

    Origin: ilium

    Insertion: pubis, linea alba & ribs

    Action: flexes vertebrae and compresses abdomen & laterally rotates trunk

  • Transversus Abdominis

    Origin: ilium & ribs

    Insertion: pubis & linea alba

    Action: compresses abdomen

  • Linea Alba

    vertical ligament running from the sternum to the pubic symphysis

  • Tendinous Intersection

    small lateral tendons that cross the rectus abdominis