Trunk- Origins and Insertions

Question 1

Origin and insertion of the diaphragm

Answer 1

xiphoid process, costal margin, fascia over the quadratus lumborum, psoas major mm. and vertebral bodies L1-L3

central tendon of the diaphragm

Question 2

origin and insertion of external intercostals

Answer 2

lower border of a rib within an intercostal space

upper border of the rib below, coursing, downward and medially