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Doctor insights on: Flow Of Food Through The Digestive System

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How does food flow through the digestive system?

How does food flow through the digestive system?

Peristalsis: Rhythmic wavelike squeezing and relaxiation from the mouth to the anus ...Read more

Dr. Heidi Fowler
3,561 doctors shared insights

Nutrition (Definition)

Nutrition is the synergistic combination of nutrients found in food and water that allows the human body to perform all essential ...Read more


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What are the parts of the digestive system tbrough which food passes?

What are the parts of the digestive system tbrough which food passes?

Parts of GI system: The GI system start with the mouth and teeth. This is where digestion begins. The food is the swallowed and taken to the stomach via the esophagus. In the stomach food is exposed to acid and mechanical grinding. Food then passes into the duodenum, jejunum and ileum where nutrients are absorbed. The liquid then enters the colon where water is absorbed and then out through the anus. ...Read more

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What is the slow, wavelike contraction that moves food through the digestive system?

What is the slow, wavelike contraction that moves food through the digestive system?

peristalsis: Peristaltic movements move the food in process throughout intestine. They are a normal phenomenon with certain characteristics. ...Read more

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The enzymes which enter the digestive tract through the duodenum are produced in what organ?

The enzymes which enter the digestive tract through the duodenum are produced in what organ?

Many: Bile comes from the gallbladder and liver, pancreatic enzymes from the (guess what?) pancreas, acid and other enzymes from the stomach lining and small intestinal lining. Even your salivary glands in your mouth get in on the action, making amylase--a communal effort. ...Read more

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In the digestive system what is the job of the teeth, small intestines, colon?

In the digestive system what is the job of the teeth, small intestines, colon?

Working together: The teeth masticate or chew the food so that the stomach can process it. Once in the stomach, the enzymes help further digest the food until it enters the intestines as chyme. Nutrients are absorbed from the small intestine until the remaining material passes down the digestive tract to the colon to be excreted. Very simple answer but more can be found online if you need a more details. ...Read more

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What is the function of bacteria in our digestive system?

What is the function of bacteria in our digestive system?

Bacteria: We have bacterial and other microorganisms as part of our systems on all integumentary surfaces (skin and mucous membranes). They play differing roles in our body. Some provide for degradation of food substances, some we have not worked out the function for. You need to take a course in microbiology since cannot be all explained here. ...Read more

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What's the role of the stomach in digestion process?

What's the role of the stomach in digestion process?

Big part: Digestion starts with good chewing & allowing saliva to do its part.Once food is in the stomach, stomach acid continues to work to break the food down into smaller packages to help remove the nutrients.Other parts of digestion happen after food has left the stomach and is exposed to other digestive juices from pancreas and gallbladder.Many hormones and chemicals interact.Good digestion needs all. ...Read more

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What is the job of bacteria in our digestive system?

What is the job of bacteria in our digestive system?

GREAT question !!!: Gut flora (bacteria) has diverse functions, ;gaining energy from fermentation of undigested carbohydrates, absorption of fatty acids, synthesizing vitamins (b, k, biotin), immune system functions, preventing growth of bad bacteria, and producing hormones.There are 10x more gut bacteria than cells in the human body! they have 100x as many genes as the human genome, so some call them "forgotten organ". ...Read more

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What's the role of the pancreas in digestion or absorption of food?

What's the role of the pancreas in digestion or absorption of food?

Importance : Very important. Cells in the pancrease (pancrelipase) produce amylase, trypsin and lipase to break your foods down better. Optimal signaling occurs when there is a low ph in the duodenal bulb. (i.e. Proper stomach acid production). 80-85% of your food is "digested by your pancreatic enzymes. (guyton). ...Read more

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What's the role of the anus in digestive system?

What's the role of the anus in digestive system?

Anus: Is this a joke? It is the terminal portion of the GI tract and prevents you from having accidents and embarrasing yourself. ...Read more

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What substance aids in the digestion and absorption of fats?

What substance aids in the digestion and absorption of fats?

Bile: bile from the gallbladder, aids in the emulsification of fats for their absorption in the small intestine. Lipase from the pancreas help in the digestion of fats. ...Read more

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Does the composition of blood change as it passes through different parts of the body (e.g. the intestines and the lungs)?

Does the composition of blood change as it passes through different parts of the body (e.g. the intestines and the lungs)?

Well sure...: More oxygen/less CO2 in blood after passing thru lungs; more absorbed nutrients after passing thru gut; first-pass metabolism occurs in liver; reduced nitrogenous waste after passing thru kidneys, etc. ...Read more

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What are the possible effect of junk food in the excretory system?

What are the possible effect of junk food in the excretory system?

As you know,: the excretory system removes excess, unnecessary materials from body fluids. These materials are removed in urine, feces, exhaled, sweat, etc. Junk food: non-nutritional food often high in sugar/fat and low in fiber, protein, vitamins or minerals. These are not a challenge to the excretory system but to metabolism often leading to obesity, diabetes, arterial plaque. AVOID THEM!! ...Read more

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What hormones pass through the hypothalamo-hypophyseal portal system?

What hormones pass through the hypothalamo-hypophyseal portal system?

Hormones: Please go online (e.g. Yahoo) and search for Yahoo Images. Then search for "Hormones" and should see images of what you are enquiring about. Most often there are a few sentences added. ...Read more

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What structure in the airway prevents food and liquids from entering the airway?

What structure in the airway prevents food and liquids from entering the airway?

Vocal cords: Although most people are taught that it is the epiglottis that prevents aspiration, that is not completely correct. The true vocal cords are more important for this function. If the epiglottis is surgically removed, most people won't aspirate, but if one or both vocal cords don't work, most people will aspirate. ...Read more

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Can some of the organs in the digestive system be transplanted?

Can some of the organs in the digestive system be transplanted?

Intestinal transplan: Yes, intestinal transplant is performed at select centers. ...Read more

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What's the role of the liver in aiding digestion?

What's the role of the liver in aiding digestion?

Liver: It is the largest chemical factory in the body so that besides making bile which is required to process your fats in your food, the liver changes the basic digested food compotents into proteins, complex fats and other essential products to help our body and helps detoxify other substances that may be harmful. ...Read more

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What is the sequence of blood flow through the heart and vascular system?

What is the sequence of blood flow through the heart and vascular system?

Here you go: Blood enters through the vena cavae, passes through the right atrium into the right ventricle. The blood then goes out into the lungs and returns via the pulmonary veins to the left atrium. That blood then goes out the left ventricle to the body and returns via the vena cavae. The order of blood vessels is great vessels, arteries, arterioles, capillaries, venules, veins and back to the cavae. ...Read more

Dr. Ali Yazdy
393 doctors shared insights

Digestive Health (Definition)

Digestive health refers to the proper functioning of the digestive tract, including the stomach, ...Read more