Rectus abdominis muscle

Rectus abdominis muscle is a muscle that runs vertically on each side of the anterior wall of the human abdomen. It is also known as the "abdominal muscle" or "abs", and is a paired muscle running vertically on each side of the anterior wall of the human abdomen.

Anatomy

The rectus abdominis muscle is crossed by three fibrous bands called the tendinous intersections. This is what gives the abdomen its "six-pack" appearance. The muscle is enclosed in the rectus sheath, which is formed by the aponeuroses of the lateral abdominal muscles.

Function

The main function of the rectus abdominis muscle is to move the body between the ribcage and the pelvis. Other functions include maintaining posture and respiratory function.

Clinical significance

Injury to the rectus abdominis muscle can result in a hernia. This is a condition where the muscle tears and the internal organs push through the tear. This can be very painful and require surgery to repair.

See also

• Abdominal exercise
• Abdominal hernia
• Abdominal muscle
• Muscles of the human body

References

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Rectus abdominis muscle

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  Rectus abdominis

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  Gray's Anatomy illustration of the rectus abdominis

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  Illustration of trunk muscles

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  Training at 2018 Summer Youth Olympics

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  2014 DécaNation - 100 m