Here you have a NEW CHALLENGE!!!
Check on this amazing facts on the human body!!! There is a mistake on one explanation (the person who can explain it to me will get a 10!)
http://dailyentertainment.me/…/weird-facts-human-body/fact-1
See you next Friday!!!
XXX
Andrea
The mistake is in the 4th fact about the human body, which says that stomach doesn´t destroy itself because the cells of the stomach wall are renewed themselves so frequently that you get a new stomach lining every 3 to 4 days. The correct answer to why does the stomach doesn´t get digested itself, is because the enzymes, Pepsin, that the gastric juice contains are secreted in an inactive way, it is released as pepsinogen, which is converted into pepsin when it mixes with hydrocloryc acid in the stomach, and after this the enzyme starts to work, and it can´t digest the stomach because the stomach lining is covered by mucus which protects it from being self-digested.
ReplyDeleteMauri
well done, Mauri!
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