Veins of the madial-caudal cervical segment of the esophagus and trachea were drained into the esophatracheal vein trunk.
回流食管和气管颈段中后部血液的静脉汇入食管气管静脉干；
2
The head and neck of the pancreas are drained by superior, inferior pancreaticoduodenal veins and pancreatic cervical vein.
胰头、胰颈的静脉血由胰十二指肠上下静脉和胰颈静脉引流。
3
Inferior thyroid veins can be divided into such three types as single trunks, double trunks, three trunks and anastomotic branch and they all cross the front of the cervical part of the trachea.