b. Appellate jurisdiction.
When the losing side of a case is dissatisfied with the decision made in the trial of a U.S. District Court or State Court, whether because they believed the trial court proceedings were not carried out properly, or disagree on what and how law was applied in the case, one of the options he or she may have is to request that an appellate court review the trial court's actions.
An appellate court, then, may appeal the Supreme Court so the decision made by the state court be reversed, remanded or modified.
This process in which a case from a lower court reaches the Supreme Court jurisdiction is an example of Appellate jurisdiction.