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rectus abdominis muscle

m. rectus abdominis

Running vertically on each side of the anterior abdominal wall, rectus abdominis is a paired muscle whose two parallel sets are separated by a midline band of connective tissue, the linea alba. Each muscle extends from the pubic symphysis and pubic crest below to the xiphoid process and the fifth to seventh costal cartilages above, and is contained within the rectus sheath. Its belly is usually crossed by three fibrous bands, the tendinous inscriptions, which divide the vertical muscle into a series of segments. That segmentation, together with the enclosing sheath and the midline raphe, is what gives the anterior abdominal wall its characteristic surface relief. It is classified here as an anterior abdominal wall muscle.

The rectus abdominis muscle is a paired muscle running vertically on each side of the anterior wall of the abdomen. There are two parallel sets of muscles, separated by a midline band of connective tissue called the linea alba (white line). It extends from the pubic symphysis/pubic crest inferiorly to the xiphisternum/xiphoid process and lower costal cartilages (5-7) superiorly. It is contained in the Rectus sheath. The rectus is usually crossed by three fibrous bands licked by the tendinous inscriptions. [WP,modified].

On this page
Type Bone
Système corporel Digestif
Structure parente anterior abdominal wall muscle
Nom latin m. rectus abdominis
FMA ID 9628

Frequently Asked Questions

What is the rectus abdominis muscle?

The rectus abdominis muscle is a paired muscle running vertically on each side of the anterior wall of the abdomen. There are two parallel sets of muscles, separated by a midline band of connective tissue called the linea alba (white line). It extends from the pubic symphysis/pubic crest inferiorly

What body system is the rectus abdominis muscle part of?

The rectus abdominis muscle is part of the Digestif.

What is the Latin name for the rectus abdominis muscle?

The Latin name for the rectus abdominis muscle is m. rectus abdominis.

References

  1. Foundational Model of Anatomy — FMA:9628 Reference anatomy ontology (University of Washington)
  2. UBERON — UBERON:0002382 Cross-species anatomy ontology (EMBL-EBI Ontology Lookup Service)
  3. Wikipedia — rectus abdominis muscle Encyclopedia article (verified cross-reference)

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Educational Disclaimer

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Data sources: Terminologia Anatomica, Foundational Model of Anatomy, Wikidata.