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Laboratory 35. Anterior Abdominal Wall
Step 11. The Pyramidalis Muscle

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Identify the small, triangular-shaped pyramidalis muscle, if it is present. The pyramidalis muscle lies anterior to the lower part of the rectus abdominis muscle. It arises from the superior surface of the pubic ramus and inserts into the linea alba.

Links and References:
Grant's: 2.6
Netter: 233
Rohen/Yokochi: 205