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Muscles of the anterolateral wall (The functions of the anterior muscles,…
Muscles of the anterolateral wall
important in their fiber orientation because it is the basic part to
support
strengthen the abdominal cavity and organs
to have a very rigid wall
and provide maximum
support and
protection, their fibers
run perpendicular to
each other
the anterior wall
vertical straight muscle (rectus abdominis)
strengthened by
several tendons joining its fleshy
parts all together
divided into 4 parts with 3 tendinous intersections
tiny triangular shaped muscle pyramidalis.
not always present
attaches to the pubic bone and to the linea
alba
The functions of the anterior muscles
Compression of the abdominal
cavity when they ALL
contract together
increased intra-abdominal pressure for
different physiological functions
forced inspiration,
vomiting,
(coughing,
defecation,
decreased abdominal
cavity space
Mobility of the trunk when SOME parts of these muscles contract
Support and protection
for the abdominal viscera