"The jugular trunks (TA: truncus jugularis) are small short paired lymphatic trunks, each one draining one side of the head and neck, forming an important terminal part of the lymphatic system 1-3."
"The jugular trunks, like other parts of the lymphatic system show a wide spectrum of anatomic variance, and may also drain directly into the central major veins instead of the lymphatic ducts, including the brachiocephalic, subclavian and internal jugular veins (often at the venous angle)."