Get workflow tasks from WorkflowInstance?

Hi!

How do I get the workflow tasks associated with a specific workflow instance? Or can I get the workflow tasks directly from the list item itself?

WorkflowServicesManager workflowServiceManager = new WorkflowServicesManager(web);
WorkflowInstanceService workflowInstanceService = workflowServiceManager.GetWorkflowInstanceService();

WorkflowInstanceCollection workflowInstances = workflowInstanceService.EnumerateInstancesForListItem(item.ParentList.ID, item.ID);

// TODO: Get tasks...

Thanks,

Kiram