1, 2 It contains all normal layers of the intestinal wall and, in approximately 50 percent of cases, contains tissue from other sites (ectopic tissue). 2 This ectopic, or heterotopic, tissue can often be the cause of complications occurring in Meckel's diverticulum. Meckel's diverticulum occurs in about 2 percent of the population, making it the most prevalent congenital abnormality of the gastrointestinal tract.
A common helium-filled latex balloon lasts from about 12 hours up to two days. However, the size, type of material, and presence of a sealant all affect the balloon's lifespan. The treatment and level of activity to which the balloon is subjected also affects how long it floats.
Unopened bottles kept at a stable temperature can last up to 1 year in the pantry. Chocolate Syrup: If stored properly in the refrigerator, once opened, chocolate syrup can last up to 1 year. It can last unopened in a pantry for up to 2 years. Ketchup: Once opened it can last up to 6 months in the refrigerator. Unopened, it can last in the pantry for about 1 year. Mustard: Once opened and stored in the refrigerator, mustard can last up to 1 year. Unopened, in the pantry, it can last for about 2 years.