Rectus Abdominis
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The "abs"; a long strap-like trunk flexor split into left/right halves by the linea alba.
Detail
The rectus abdominis is commonly known as the "abs." It is a long strap-like muscle divided into left and right halves by a vertical tendinous line called the linea alba. The muscle tapers, so it is 3 times wider at the top compared to the lower section at the pelvis. It is a primary trunk flexor and one of the atrophic-weakening muscle groups.
Key facts
- Commonly called the "abs."
- Long strap-like muscle split left/right by the linea alba.
- Tapers — 3 times wider at the top than at the lower pelvic section.
- Primary trunk flexor.
Connections
- Abdominals (Midsection) — group it belongs to.
- Flexion — trunk flexion.
- Atrophic Weakening Muscle Groups — listed as an atrophic-weakening muscle.
- Crunches / Rope Crunches — training exercises.
Sources
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Educational content only — not medical advice. Always consult a qualified professional for individualized guidance, especially around injury, pregnancy, or medical conditions.