Questions tagged [stomach]
27 questions
11
votes
3 answers
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 inactive form of rennin (in addition to pepsinogen,…
paracetamol
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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 into the small intestine.
But this simple narrative…
SlowMagic
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5
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2 answers
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 actually happen?
Question
Are you able to explode…
Featherball
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5
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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 true? If so, how does it relate to the first…
Boson
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5
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1 answer
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 webpage : Acid reflux mythbusters has this bizarre…
Roo Tenshi
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4
votes
3 answers
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 antibacterial compounds. Does semen contain any kind of…
Sto-vo-kor
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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 digest grass?
Ender Look
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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
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3
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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 the stomach?
shnisaka
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3
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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, or does the stomach run out of a particular…
Shane Di Dona
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3
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1 answer
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 stomach? What is the mechanism?
golgicik
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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 through your throat and into the stomach.
Once there,…
today
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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 more acidic therefore make reflux worse.
Lee
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2
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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 leave the stomach straight to small intestine once…
user32340
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2
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1 answer
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?
user6116