Chapter 10
The Muscular System
343
10
Serratus anterior
Pectoralis major
Linea alba
Tendinous intersection
Rectus abdominis
Inguinal ligament
(formed by free inferior
border of the external
oblique aponeurosis)
Transversus abdominis
Internal oblique
External oblique
Aponeurosis
of the external
oblique
(a)
Transversus abdominis
Peritoneum
External oblique
Aponeuroses
(c)
Linea
alba
Rectus abdominis
Internal oblique
Skin
External
oblique
(b)
Internal
oblique
Transversus
abdominis
Inguinal
ligament
Pubic tubercle
Rectus
abdominis
Lumbar
fascia
Lumbar
fascia
IIiac crest
Figure 10.12
Muscles of the abdomi-
nal wall. (a)
Anterior view of the muscles
forming the anterolateral abdominal wall;
superficial muscles partially cut away to
reveal the deeper muscles.
(b)
Lateral view
of the trunk, illustrating the fiber direction
and attachments of the abdominal muscles.
Although shown in the same view, the rectus
abdominis is deep to the fascia of the inter-
nal oblique muscle.
(c)
Transverse section
through the anterolateral abdominal wall
(midregion), showing how the aponeuroses
of the lateral abdominal muscles contribute
to the rectus abdominis sheath.
MUSCLE GALLERY
Table 10.6
(continued)
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