Internal Oblique Abdominal

Question 1

Action: Unilaterally

Answer 1

Laterally flex vertebral column to the same side, rotate vertebral column to the same side

Question 2

Action: Bilaterally

Answer 2

Flex the vertebral column, compress abdominal contents

Question 3

Origin

Answer 3

Lateral inguinal ligament, iliac crest, and thoracolumbar fascia

Question 4

Insertion

Answer 4

Internal surface of lower three ribs, rectus sheath to linea alba