Transversus Abdominis

Transversus Abdominis Muscle

Transversus Abdominis 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.

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