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Transverse abdominal muscle
| Transverse abdominal muscle | |
|---|---|
 Muscles of the trunk. | |
 The transversus abdominis, rectus abdominis, and pyramidalis. | |
| 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 (bilateral), rotates trunk ipsilaterally (unilateral) |
| Identifiers | |
| Latin | musculus transversus abdominis |
| TA98 | A04.5.01.019 |
| TA2 | 2375 |
| FMA | 15570 |
| Anatomical terms of 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 serves to compress and retain the contents of the abdomen as well as assist in exhalation.
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عضلة مستعرضة بطنية Arabic Múscul transvers de l'abdomen Catalan Tværgående bugmuskel Danish Musculus transversus abdominis German Músculo transverso del abdomen Spanish ماهیچه عرضی شکم FA Muscle transverse de l'abdomen French Poprečni trbušni mišić Croatian Muscolo trasverso dell'addome Italian 腹横筋 Japanese
