MSSQL - Find What FOREIGN KEY Constraint References

SELECT

   OBJECT_NAME(f.parent_object_id) TableName,

   COL_NAME(fc.parent_object_id,fc.parent_column_id) ColName

FROM

   sys.foreign_keys AS f

INNER JOIN

   sys.foreign_key_columns AS fc

      ON f.OBJECT_ID = fc.constraint_object_id

INNER JOIN

   sys.tables t

      ON t.OBJECT_ID = fc.referenced_object_id

WHERE

   OBJECT_NAME (f.referenced_object_id) = 'YourTableName'