Return to the anterior chest wall. (G 3.22;N 187;Gl 7.11)

  1. Identify thetransversus thoracis muscle adjacent to the sternum.
  2. Identify the internal thoracic artery and vein and at least one anterior intercostal artery and vein.
Important Relationship

The internal thoracic artery is positioned posterior (deep) to the first six costal cartilages.

Transversus Thoracis Muscle