Thoracic duct opens into:
High-Yield Explanation
Thoracic duct is continuation of cysterna chyli. It passes through aoic hiatus beginning at lower border of T12 . At T5 it crosses to left side andopens into the left venous (jugulo-subclan) angle - junction of the left internal jugular and subclan vein, at the beginning of left brachio-cephalic vein.