Cells that make up the pyloric antrum secrete mucus and a number of hormones, including the majority of the stimulatory hormone, gastrin. The much larger glands of the fundus and body of the stomach, the site of most chemical digestion, produce most of the gastric secretions. These glands ...
Chemical breakdown.Proteins are chemically broken down by the enzyme pepsin. Chief cells, as well as other stomach cells, are protected from self‐digestion because chief cells produce and secrete an inactive form of pepsin, pepsinogen. Pepsinogen is converted to pepsin by the HCl produced by the...
One of the striking clinical findings was that the abdominal fluid cell counts were frequently inaccurate, most likely because the acid stomach contents lysed cells infiltrating into the abdomen. However, a number of abdominal fluid samples were not analyzed because they had the appearance of in...
Today more than 1 billion people around the globe live on less than ' 1 a day. Making genetically modified crops available will not reduce hunger if farmers cannot afford to grow them or if the local population cannot afford to buy the food those farmers produce. 尽管具有这么多潜力,生物技术...
These cells produce defensins, which are thought to be vital for keeping the crypts of Lieberkühn germ-free and thus protecting the stem cell region. We have tried to identify Paneth cells in salmon using staining methods to identify granula, but so far, these efforts have been negative (E...
Recently, some efforts have been made to stimulate the outer muscular wall of the intestine35 or a small portion of the stomach36 in vivo. But no tool existed to control a specific population of gut epithelial cells diffused along several centimeters of the intestinal lumen in a living animal...
I cannot stomach seeing him and I already see the anger in his face and voice. My thoughts kept rehashing the conflict and I am getting more and more upset. A car cut right in front of me to squeeze into my lane. I had to slam on my brakes. What an idiot! My heart rate was ...
Answer to: Fill in the blanks: ___ (hormone) produced by G cells in the pyloric antrum stimulates ___ secretion in the stomach. By...
cells communicate bidirectionally. Neurons produce neuropeptides and hormones that trigger mast cell activation and degranulation; in turn, mast cells can produce histamine, serotonin and tryptase that can regulate neuronal function.DIn IBS, production of VIP triggers mast cell degranulation which is ...
Hormones, secreted by cells in the lining, trigger the release of acids and enzyme-rich juices from the stomach wall 内膜细胞分泌的激素会引发胃壁释放酸和富含酶的汁液, that start to dissolve the food and break down its proteins. 这些汁液会开始溶解食物并分解其中的蛋白质。 These hormones also ...