Transverse abdominal muscle
The transverse abdominal muscle (TVA), also known as the transverse abdominis, transversalis muscle and transversus abdominis muscle, is a muscle layer of the anterior and lateral (front and side) abdominal wall , deep to (layered below) the internal oblique muscle. It is thought by most fitness instructors to be a significant component of the core.
| Transverse abdominal muscle | |
|---|---|
Muscles of the trunk. | |
| Details | |
| Origin | Iliac crest, inguinal ligament, thoracolumbar fascia, and costal cartilages 7-12 |
| Insertion | Xiphoid process, linea alba, pubic crest and pecten pubis via conjoint tendon |
| Artery | subcostal arteries. |
| Nerve | Thoracoabdominal nn. (T6-T11), Subcostal n. (T12), iliohypogastric nerve (L1), and ilioinguinal nerve (L1). |
| Actions | Compresses abdominal contents |
| Identifiers | |
| Latin | musculus transversus abdominis |
| TA98 | A04.5.01.019 |
| TA2 | 2375 |
| FMA | 15570 |
| Anatomical terms of muscle | |
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