[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-03-24 UTC."],[],[],null,["Type name: [Vein](/workspace/gmail/markup/reference/types/Vein)\n\nExtends [Vessel](/workspace/gmail/markup/reference/types/Vessel)\n\n| Name | Type | Description |\n|---------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------|\n| drainsTo | [Vessel](/workspace/gmail/markup/reference/types/Vessel) | The vasculature that the vein drains into. |\n| regionDrained | [AnatomicalStructure](/workspace/gmail/markup/reference/types/AnatomicalStructure) or [AnatomicalSystem](/workspace/gmail/markup/reference/types/AnatomicalSystem) | The anatomical or organ system drained by this vessel; generally refers to a specific part of an organ. |\n| tributary | [AnatomicalStructure](/workspace/gmail/markup/reference/types/AnatomicalStructure) | The anatomical or organ system that the vein flows into; a larger structure that the vein connects to. |"]]