Abdominal pa of esophagus is supplied by the left gastric aery and left inferior phrenic aeryInferior thyroid aery supplies the cervical pa Bronchial aeries and descending thoracic aoa supplies the thoracic pa Venous drainage of the esophagus:The cervical pa drains into the inferior thyroid veins.The thoracic pa drains into the azygos and hemiazygos veins.Abdominal pa is drained by left gastric vein a tributary of poal vein. The veins of the lower thoracic pa are systemic therefore there is a potential poosystemic anastomosis between the two sets of veins at the lower end of esophagus in the submucosa.Ref: Clinical Anatomy: (a Problem Solving Approach) By Kulkarni page 288.