Transverse Abdominis

Question 1

Transverse Abdominis (ORIGIN)

Answer 1

Internal surfaces of costal cartilages 7-12, thoracolumbar fascia, iliac crest, lateral third of the inguinal ligament

Question 2

Transverse Abdominis (INSERTION)

Answer 2

Linea alba with the aponeurosis of the internal oblique, pubic crest, and pecten pubis via the conjoint tendon

Question 3

Transverse Abdominis (INNERVATION)

Answer 3

Thoracoabdominal nerves (T7-T11), subcostal nerve (T12), iliohypogastric and ilioinguinal nerves (L1)

Question 4

Transverse Abdominis (BLOOD SUPPLY)

Answer 4

Lower intercostal arteries, superior and inferior epigastric arteries, deep circumflex iliac artery

Question 5

Transverse Abdominis (ACTION)

Answer 5

Compresses abdominal contents.
Provides thoracic and pelvic stability.