Abdomen 1 - Anterior Abdominal Wall and Abdominal Cavity

Question 1

Muscles of the abdomen

Answer 1

External abdominal obliques
Internal abdominal obliques
Transversus abdominus
Rectus abdominis

Question 2

Origin and insertion of external abdominal obliques (hands in pockets)

Answer 2

O - lower ribs

I - linea alba by an aponeurosis

Question 3

Origin and insertion of internal abdominal obliques (hands in gloves)

Answer 3

O - lumbar fascia, inguinal ligament, iliac crest

I - linea alba, pubic crest, lower ribs

Question 4

Origin and insertion of transversus abdominis

Answer 4

O - lumbar fascia, inguinal ligament, iliac crest

I - linea alba, pubic crest

Question 5

Origin and insertion of rectus abdominis

Answer 5

O - pubis

I - xiphoid of sternum, ribs

Question 6

Action and innervation of all abdomen muscles

Answer 6

A - flexes vertebral column, compress abdomen

I - spinal nerves