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Pyramidal muscle
Medical expert of the article
Last reviewed: 07.07.2025
The pyramidal muscle (m. pyramidalis) has a triangular shape, is located in front of the lower part of the rectus abdominis muscle. The muscle begins at the pubic symphysis. The fibers of the muscle are directed from the bottom up and are woven into the white line of the abdomen. (Sometimes the muscle is absent.)
Function of the pyramidalis muscle: tightens the linea alba.
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