The pathogenesis of ectopic gastric mucosa is a matter of debate between a congenital-embryological-and an acquired origin-consecutive to a gastroesophageal reflux (GER) like Barrett's esophagus -, the most commonly accepted theory being that these areas are embryological remnants.
Standard size latex filled helium balloons stay afloat for approx 8 - 12 hours, metallic helium filled balloons float for 2-5 days. I have found that a 36 latex helium filled balloon can stay afloat for a number of days due to the thickness of the balloon and the massive quantity of helium.
A normal helium balloon can lift approximately 14 grams. As a  result, lifting 5 pounds (about 2268 grams), would require over 162  balloons.Note, however, that this is an â¦ estimate and may vary  between different balloon types made by different manufacturers, as  well as by how fully the balloon is inflated. normal helium balloon can lift approximately 14 grams. As a  result, lifting 5 pounds (about 2268 grams), would require over 162  balloons.