Muscles of the Abdominal Wall

Question 1

External Oblique

Answer 1

Unilateral a: laterally flexes vertebral column; rotation of vertebral column
Bilateral a: Flexes vertebral column and compresses abdominal wall
O: ribs 5-12
I: Linea Alba, Illium

Question 2

Internal Oblique

Answer 2

Unilateral A: Laterally flexes vertebral column; rotation of vertebral column to opposit side
Bilateral A: Flexes Vertebral Column and compresses abdominal wall
O: Inguinal ligament, Illium
I: Linea Alba, Pubis, Ribs 8-12

Question 3

Transversus abdominis

Answer 3

Unilateral: laterally flexes vertebral column
Bilateral A: Flexes vertebral column
O: Illium, ribs 7-12, iniguinal ligament
I: Linea alba, pubis

Question 4

Rectus Abdominis

Answer 4

A: Flexes Vertebral Column and compresses abdominal wall
O: Pubis
I: Sternum, ribs 5-7