Abdominals

Question 1

Rectus abdominis

Answer 1

O: pubic crest, pubic symphysis
I: cartilage of costea 5-6-7 and xiphoid process
F: flex the vertebral column
tilt pelvis posterior

Question 2

external oblique

Answer 2

O: external surfaces of costea 5-12
I: anterior part of the iliac crest, rectus sheath to linea alba
F: unilaterally
laterally flex vertebral column to the same side
rotate vertebral column to the opposite side

bilaterally
flex the vertebral column
compress abdominal contents

Question 3

internal oblique

Answer 3

O: lateral inguinal ligament, iliac crest and thoracolumbar fascia
I: internal surface of lower 3 ribs, rectus heath to linea alba
F: Unilaterally
laterally flex vertebral column to the same side
Rotate vertebral column to the same side

Bilaterally:
Flex the vertebral column
Compress abdominal contents

Question 4

transverse abdominis

Answer 4

O: lateral inguinal ligament, iliac crest, thoracolumbar fascia, and internal surface of lower 6 ribs
I: rectus sheath to linea alba
F: compress abdominal contents