Chapter 5 The Muscular System 177
Figure 5.19 Major muscles of the trunk. What are some basic functions that the muscles of the trunk assist with,
in addition to movement of the trunk and the head and protection of the organs?
Erector spinae muscle group
External intercostal
External oblique
Internal intercostal
Internal oblique
External oblique
(cut and pulled back)
Rectus abdominis
Abdominal
aponeurosis
Trapezius
A. Anterior view
B. Posterior view
Label Art