Anterior Abdominal Wall

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There are four muscles in the Anterior Abdominal Wall:

• Rectus abdominis
• External abdominal oblique
• Internal abdominal oblique
• Transversus abdominis

ACTIONS:

• Flex the trunk at the spinal joints.
• Laterally flex the trunk at the spinal joints.
• Contralaterally rotate the trunk at the spinal joints.
• Ipsilaterally rotate the trunk at the spinal joints.
• Posteriorly tilt the pelvis at the lumbosacral joint.
• Compress the abdominal contents.

Note: For attachments (and more specific actions and other information), see the specific muscle.