Celiac disease is a digestive disease that can affect children and adults alike. Also known as celiac sprue, this disease is the most common genetic disease in Europe and is considered significantly underdiagnosed in the U.S. Learn more about the disease by taking this quiz.
The human appendix is a 3- to 6-inch narrow tube located where the small and large intestines join. It's mostly known for becoming inflamed and requiring emergency abdominal surgery for thousands of Americans each year. If you want to learn more about the appendix, take this quiz, based on information from the National Institute of Diabetes and Digestive and Kidney Diseases.