Jane became nervous with the Finals and was not able to eat her breakfast. Jane’s blood glucose level decreases and is secreted from pancreatic cell to increase the blood glucose level. Meanwhile, her empty stomach secretes that targets arcuate nucleus of hypothalamus and signal that she is hungry. As Jane has enough time before the exam, she heads to the food court and ordered Carl’s Jr. As her ingested food arrives to stomach, endocrine cells in the stomach secretes , to stimulate gastric exocrine cells that secrete protein digesting enzyme , and parietal cells that secretes , and . Now partially digested food, also named as chime, leaves stomach and enters first part of small intestine, . Low pH of the chime induces the release of from the first part of intestine. This hormone travels to the pancreas and stimulates the secretion of from to neutralize the chime. After chime is neutralized, I cell of duodenum secretes , which targets pancreatic cells that secrete pancreatic digestive enzymes. Now, Jane’s blood glucose level rise sharply as glucose from food enters the small intestine absorptive cells, pancreatic cells secrete hormone, , to decrease blood glucose level by targeting glucose storage in tissues/organs, and .