Questions tagged [stomach]

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8
votes
2answers
113 views

How does the stomach handle continuous eating?

In biology class, we learned this familiar story: Food enters the stomach, the stomach churns it with acid and enzymes, and then, somehow, the stomach senses when the stew is ready and releases it ...
2
votes
1answer
40 views

RE: Fasting gastric pH vs Normal gastric pH

If fasting gastric pH values are more acidic then why is it recommended to eat no more than three hours before bed time to prevent reflux. It seems at some point during sleep the stomach would become ...
3
votes
1answer
994 views

If humans had cellulase would they be able to digest grass?

Cellulase is an enzyme capable of break cellulose to digest it. If humans could be able to produce cellulase in our stomach would we be able to digest grass? If not, What more things would we need in ...
3
votes
3answers
24k views

What is the function of E-coli bacteria in our gut?

So, I recently came up with this question. I googled it, but couldn't understand the proper functions of E-coli bacteria. A little definition would be wonderful.
4
votes
3answers
6k views

Do the enzymes and compounds in saliva help with stain removal?

Does spitting on stains help with removal? Saliva is high in amylase that should help with the breakdown of protein rich stains like blood and semen. It also contains antimicrobial enzymes and ...
11
votes
3answers
5k views

Do humans produce rennin?

At school, we've been taught that human infants produce rennin/chymosin (which aids in the digestion of milk). More specifically, it is the peptic cells in the stomach which secrete prorennin, the ...
0
votes
0answers
31 views

Role of non-inflammation in H.Pylori positive people

Quoted from Saudi J Gastroenterol. 2009 Jul; 15(3): 201–207 publication : Approximately 50% (over 3 billion) of the world populations are known to be infected with Helicobacter pylori, mainly in ...
1
vote
0answers
211 views

What is the resting human stomach pH?

This article in ThoughtCo.com claims we have a resting stomach pH of 4-5. Unfortunately, there are no references, so I can't verify what it says. I am slightly confused, however. The study says "...
3
votes
1answer
659 views

Which cells produce HCl produced in stomach? Don't these cells get destroyed by HCl?

Which cells produce HCl produced in the stomach? Or is HCl produced due to the translation of proteins. Don't these cells get destroyed by HCl?
1
vote
1answer
2k views

In which organs is water that we drink absorbed into the blood?

From biology classes I remember that water from food we eat is mostly 'sucked in' (absorbed into blood) in the colon. I guess the same is true for water we drink. But if I eat something, it will reach ...
3
votes
1answer
185 views

Why does too much candy cause nausea?

As I sit here after eating too much chocolate, I wonder: What are the biological mechanisms behind eating too much candy candy causing nausea in a healthy individual? Is it a spike in blood sugar, ...
5
votes
2answers
801 views

Can you eat enough to make your stomach explode?

Background After eating a large meal last night, I noticed that my tummy had significantly enlarged. After that, I started wondering if eating too much could cause a stomach to explode. Could this ...
1
vote
0answers
161 views

How does having an empty stomach affect absorption of compounds?

From personal experience, compounds such as nicotine, caffeine and alchohol appear to absorb much quicker into the blood on an 'empty' stomach', or after extended periods of fasting. If this is the ...
3
votes
1answer
45k views

Why do we suffer abdominal pain after we get very angry or stress?

You also realize probably, when we get so much anger or high levels of stress, after some point we have terrible stomach ache, like really heavy pain. Why is that? How stress or anger can effect our ...
3
votes
1answer
4k views

Fasting gastric pH versus normal gastric pH

I want to know if someone is fasting (no food or drink for a whole day) will they have a higher or lower pH than a person who is eating regularly? If so what is an estimate of both of those pH's in ...
2
votes
0answers
68 views

Does having a total gastrectomy (removal of the stomach) cause individuals to be more prone to infections?

If a patient has a complete removal of his/her stomach (i.e. a total gastrectomy), then does that cause a person to be more prone to infections from eating unsanitary food? I'm asking this question ...
1
vote
1answer
1k views

What is the “leaky valve” between the esophagus and stomach?

When someone talks about there being a "leaky valve" between the esophagus and the stomach, what is the exact biological structure they are talking about? This would be a structure that, when ...
2
votes
0answers
64 views

Is there tea allergy? [closed]

In every day when I drink more tea than other drink I have to go to water closet more often than other days. Does it cause any allergy or any other reason behind it?
0
votes
1answer
493 views

Stomach sagittal section

Can anyone please tell me where is exactly the stomach in this image? This is a sagittal section from the University of Michigan Visible Human Browsers. Thank you.
2
votes
1answer
196 views

Stomach Virus : How does it affect the bacteria of the intestines?

When you have a stomach virus and it causes extreme bowel movements to the point of almost pure stomach acid, does this kill off the bacteria in our intestinal tracks?