GUIDES
Thorax-Body Wall Organization
[Plate 179, Bony Framework of Thorax]
Layers
First and second layers
Skin
Tela subcutanea (superficial fascia), including the breasts
Third layer-muscles moving the upper limb
pectoralis major
pectoralis minor
serratus anterior
Fourth layer-includes muscles of the chest wall
Ribs
Intercostal muscles
External intercostal muscles
Internal intercostal muscles
Innermost intercostal muscles
Intercostal muscles