Transversus Abdominus
Transversus Abdominus is often abbreviated to TVA. This is a very important core muscle which is vital in maintaining good posture. Activities such as Pilates focus on contraction of the TVA.
Origin
- Front of the iliac crest.
- Inguinal ligament.
- Costal cartilages of the lower 6 ribs.
- Thoracolumbar fascia.
Insertion
- Linea alba.
Actions
- Compresses the abdomen and supports the abdominal visera.
Innervation
- Ventral rami of thoracic nerves.
- Ilioinguinal nerve.
- Iliohypgastric nerve.
Daily uses
- Maintaining good posture.
Example exercises
- Core contraction exercises.
Related injuries
- Lower back pain.
Related muscles
- Rectus abdominus.
- Internal obliques.
- External obliques.
