Skip to main content

Questions tagged [stomach]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
5 votes
0 answers
97 views

Is ghrelin only secreted when the stomach is empty?

Several texts indicate that ghrelin is secreted when the stomach is empty. However, some(not all) texts also indicate that ghrelin is secreted when blood sugar levels are low. Is the second statement ...
Boson's user avatar
  • 51
0 votes
1 answer
133 views

Will eating candy with a lower ph than the stomach increase stomach acidity in the short term?

The average stomach ph is 2.5. Some candies have a ph that is lower (more acidic) than that. Will eating candy with a lower ph than the stomach increase stomach acidity in the short term?
user avatar
1 vote
0 answers
47 views

is pepsin able to break down proteins into amino acids in human stomach? [closed]

I'm trying to find out if pepsin can break down proteins into amino acids after they are converted to peptides. Is pepsin able to separate amino acid monomers from the peptides? can you please show me ...
Parham Moieni's user avatar
5 votes
1 answer
1k views

Does an "empty stomach" have acid in it?

I know that the pH of the acid in an empty stomach is higher than a stomach with food. I was trying to understand how water passes through stomach to intestines with the absence of food. But this ...
Roo Tenshi's user avatar
2 votes
1 answer
175 views

What is inside digestive system while it's empty?

Up to this point, all my life I assumed that stomach and intestines are filled with air. I got this impression from all the anatomic drawings in schoolbooks and encyclopedias that show empty stomach ...
ScienceDiscoverer's user avatar
1 vote
1 answer
198 views

Why can we eat salty food, but can't stomach salty water?

I know that too much sodium is bad for our health. However, it struck me as odd that we like to add salt to pasta sauce or other foods we eat, yet trying to drink salt water can bring on the gag ...
Amphibio's user avatar
  • 263
2 votes
2 answers
4k views

Can stomach acid destroy a virus?

I was reading about a viral list of dubious coronavirus tips on The Verge and reached this tip: “Even if the virus gets into your mouth, drinking water or other liquids will wash them down ...
today's user avatar
  • 137
9 votes
2 answers
320 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 ...
SlowMagic's user avatar
  • 525
2 votes
1 answer
55 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 ...
Lee's user avatar
  • 21
3 votes
1 answer
2k views

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

Cellulase is an enzyme capable of breaking cellulose. If humans were able to produce cellulase in our stomach would we be able to digest grass? If not, what more things would we need in order to ...
Ender Look's user avatar
0 votes
0 answers
47 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 ...
joe's user avatar
  • 945
11 votes
3 answers
9k 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 ...
paracetamol's user avatar
  • 1,569
1 vote
0 answers
350 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 "...
man_in_green_shirt's user avatar
3 votes
1 answer
2k 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?
Porcupine's user avatar
  • 153
1 vote
1 answer
4k 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 ...
Danyl Filatov's user avatar
2 votes
2 answers
651 views

Carbohydrates in acidic stomach

How does the acidic environment in the stomach affect carbohydrate and fast digestion? Does it aid, impede or remain neutral in their digestive process? Or do the carbohydrates, fats and proteins ...
user32340's user avatar
5 votes
2 answers
1k 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 ...
Featherball's user avatar
1 vote
0 answers
181 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 ...
bigcodeszzer's user avatar
3 votes
1 answer
5k 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 ...
shnisaka's user avatar
  • 221
1 vote
3 answers
26k views

What is the function of E. coli bacteria in the human gut?

What is the function of the bacterium, E. coli, in the human gut? I have tried to find the answer by searching the Internet (e.g. here), but have been unsuccesful.
Abhishekstudent's user avatar
1 vote
1 answer
3k 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 ...
smeeb's user avatar
  • 639
4 votes
3 answers
11k 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 ...
Sto-vo-kor's user avatar
3 votes
1 answer
928 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, ...
Shane Di Dona's user avatar
3 votes
1 answer
53k 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 ...
golgicik's user avatar
  • 413
2 votes
1 answer
256 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?
user avatar
0 votes
1 answer
650 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.
The.Blue.Shrimp's user avatar
2 votes
0 answers
79 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 ...
Josh Pinto's user avatar
  • 2,398