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Abdominal Muscles

Cats

Abdominal Muscles

From Wikipedia the free encyclopedia, by MultiMedia

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There are four abdominal muscles in the cat, namely, External Oblique, Internal Oblique, Transversus abdominis, and the Rectus Abdominis.

External Oblique

It is the large and outermost abdominal muscle you will first see in dissection. Its fibers are running obliquely downward, hence the name. It is covered anteriorly by the Latissimus Dorsi. Origin, on the ribs and in the lumbodorsal fasica, Insertion, aponeurosis that passes through the linea alba, Action, constrictor of the abdomen.

Internal Oblique

The Internal Oblique are just below the External Oblique. Origin, second sheet of the lumbodorsal fascia and the pelvic girdle. Insertion, linea alba, Action, compressor of the abdomen.

Transversus Abdominis

This muscle is the innermost abdominal muscle. Origin, second sheet of the lumbodorsal fascia and the pelvic girdle. Insertion, linea alba, Action, compressor of the abdomen.

Rectus Abdominis

To see this muscle, first remove the extensive aponeurosis sitruated on the ventral suface of the cat. Its fibers are extremely longitudinal, on each side of the linea alba. It is also traversed by the inscriptiones tendinae, or what others call myosepta.

See also


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This guide is licensed under the GNU Free Documentation License. It uses material from the Wikipedia.


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