Home > Anatomy & Physiology > Muscles > External Obliques

External Obliques

Origin

• Lowest 8 ribs

Insertion

• Front 1/2 of the iliac crest
• Linea alba

Actions

• Contraction of one side alone laterally bends the trunk to that side
• and rotates the trunk to the other side
• Compresses the abdomen and supports the abdominal viscera

Innervation

• Ventral rami of thoracic nerves

Daily uses

• Raking leaves

Example exercises

• Twisting crunches or sit-ups
• Sitting twist using a resistance band
• Standing twist using a resistance band

How can I stretch it?

• Side stretch

How can I strengthen it?

• Twisting crunches
• Medicine ball twists
• Sitting twist with a resistance band
• Standing twist with a resistance band