Thoracic duct doesn't drain :
Right upper pa drains lymphatics into the right lymphatic duct whereas the rest of the body drains into the thoracic duct. The thoracic duct is a continuation of cistern chyle as it pass through aoic hiatus at the level of T12. At T5, it crosses to left side and drains at left jugulosubclan venous angle at C5. Ref: Gray's Anatomy The Anatomical Basics of Clinical Practice 41 e pg 979.
Right upper pa
Left upper pa
Left lower pa
Right lower pa
General anatomy