Transversus abdominis muscle
Musculus transversus abdominis
- Synonym: Transverse abdominal muscle
Definition
Origin: Eighth costal cartilage, last lumbar transverse process and tuber coxae.
Insertion: On the inner surface of the rectus abdominus.
Action: Compression and support of the abdominal viscera.
Nerve: Medial branches of the last few intercostales and costoabdominalis, iliohypogastricus and ilioinguinalis nerves.
References
Text by Antoine Micheau, MD - Copyright IMAIOS
