Blood sugar regulation cells in the pancreatic islets are among the most well understood and important. If the blood glucose level falls to dangerous levels (as during very heavy exercise or lack of food for extended periods), the alpha cells of the pancreas release glucagon, a hormone whose effects on liver cells act to increase blood glucose levels. They convert glycogen into glucose (this process is called glycogenolysis). The glucose is released into the bloodstream, increasing blood sugar. Hypoglycemia, the state of having low blood sugar, is treated by restoring the blood glucose level to normal by the ingestion or administration of dextrose
Spreckels Organ Pavilion Spreckels Organ Pavilion Spreckels Organ Pavilion houses the open-air Spreckels Organ in Balboa Park, San Diego, California. The Spreckels Organ is the world's largest pipe organ in a fully outdoor venue. Constructed for the 1915 Panama-California Exposition, it is located at the corner of President's Way and Pan American Road East in the park. John D. Spreckels, son of sugar magnate Claus Spreckels, was one of the wealthiest residents in San Diego County. He supported the Panama-California Exposition, and during its construction, he and his brother Adolph B. Spreckels gave the organ pavilion as a gift to "the people of