abdominals

Question 1

external abdominal oblique

Answer 1

O = ribs 5-12

I = linea alba, iliac crest, pubic tubercle

Question 2

rectus abdominis

Answer 2

O = pubic crest, pubic symphysis

I = costal cartilages of ribs 5-7, xiphoid process

Question 3

internal abdominal oblique

Answer 3

O = thoracolumbar fascia, iliac crest, inguinal ligament

I = costal cartilages of ribs 10-12, linea alba, pecten pubis (via conjoint tendon)

Question 4

transversus abdominis

Answer 4

O = costal cartilages of ribs 7-12, thoracolumbar fascia, iliac crest, inguinal ligament,

I = linea alba (via aponeurosis of IAO), pecten pubis (via conjoint tendon), pubic crest

Question 5

diaphragm

Answer 5

O = internal surfaces of xiphoid process, ribs 7-12 + costal cartilages, medial and lateral arcuate ligaments, bodies of L1-L3

I = central tendon