The cause of stomach ulcers was due to lifestyle choices: stress, smoking, spicy foods; the stomach acid was breaking through the lining on its own.(直到20世纪80年代,人们还认为细菌不能在胃酸中生存。胃溃疡的原因是生活方式的选择:压力、吸烟、辛辣食物;胃酸会自己冲破肠壁。)”可知,D选项“一些...
When you eat something,your stomach breaks down its large molecules(分子) into smaller ones.Many people like to eat pineapples(菠萝).So when you eat pineapples,they can"eat"you by breaking down the molecules in your body.Pineapples have certain enzymes (酶) that can break down proteins (...
During digestion, the stomach is capable of dramatically lowering the pH of its contents and of secreting pepsinogen to begin breaking down protein. However, both HCl and pepsinogen (the latter being converted to pepsin) are inherently damaging to mucosa, which possesses a number of mechanisms to...
The stomach is a sac that contains different gastric juices, acids, and enzymes that help break down food and digest it. Learn about the physiology...
Venous drainage from the stomach is via gastric veins to the portal vein.1 Physiology During digestion, the stomach is capable of dramatically lowering the pH of its contents, and of secreting pepsinogen to begin breaking down protein. However, both HCl and pepsinogen (which is converted to...
CWhen you eat something, your stomach breaks downis large molecules(分子) into smaller ones. Many peoplelike to eat pineapples. So, when you eat pineapples, theycan“eat” you by breaking down the molecules that make up the cells细胞) in your body.Pineapples have certain enzymes(酶) that...
Lingual lipase then begins breaking down triglycerides into free fatty acids, and mono- and diglycerides. The breakdown of protein begins in the stomach through the actions of HCl and the enzyme pepsin. During infancy, gastric glands also produce rennin, an enzyme that helps digest milk protein....
What are Soviet Gulags? What happened in Gulags? And what did they accomplish? The word "Gulag" is actually an acronym of its official ...
3.They start breaking down food during the first hour or so after eating, when it's still in the upper stomach, waiting for stomach acid to collect in the lower stomach to break it down further. 在进食后的大约第一个小时内开始消化食物,这时食物仍在胃的上部,等待胃酸在胃下部聚集从而进一步消...
The stomach is an important organ involved in digestion. For an animal such as a rat, the stomach is involved in degrading or breaking down food... Learn more about this topic: Stomach Facts: Lesson for Kids from Chapter 3/ Lesson 43 ...