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Digestive System
Digestive System is the category for questions regarding the breakdown and absorption of food-stuffs in our alimentary canal. Questions about the stomach and intestines can be included in this category.
7,599 Questions
What is the function of the epilottis during the digestive process?
Prevents food and water entering the lungs
How is the digested food transported?
The nutrients are taken out of the food while it is being digested, and going into your bloodstream, which flows around your body and feeds the nutrients to different parts of your body.
It's a semi solid mixture of food we ingested. it contains various chemicals and enzymes to start up various processes in digestion and it also serves as a energy supply to the body.
What group of foods do not need to be digested?
Well water is not digested but i actually have no idea what I'm saying so forget this answer :)
Organism which utilizes intracellular digestion?
Unicellular eukaryotes achieve intracellular digestion through the process of endocytosis, phagocytosis, and use of food vacuoles and lysosomes.
A paramecium is an example of an organism that uses intracellular digestion vs. humans which utilize extracellular digestion.
What is the advantage of chewing food rather than swallowing it whole?
Chewing food before swallowing has four important roles:
1) Preparation of bolus to facilitate swallowing
Chewing mechanically breaks down large complex food molecules into smaller simpler molecules so that there is an increase in surface area for the action of salivary enzymes (e.g. amylase) to begin digestion (however, digestion in the mouth is minimal compared to the SI).
2) Chewing stimulates salivary flow and hence allows the food to be mixed and lubricated which makes swallowing easier
3) Chewing releases chemicals from food which stimulate taste bud receptors
4) Chewing helps to maintain the structural integrity of the oro-facial tissues (it is through the process of chewing that exercise of our jaws helps to keep them strong and healthy)
Chewing before swallowing makes digestion and absorption more efficient as the lubricated bolus is a much smaller mass of food and so nutrients extracted can be absorbed more quickly. Chewing is particularly important for tough food such as red meat than it is for fish, eggs, cheese because these can be broken down in the SI aswell. Red meat is more difficult to break down in the GI tract and this makes it harder to absorb nutrients from it.
Hope this helps?
What does Gallbladder do in digestive system?
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What must proteins be broken down into before being absorbed?
Yes they do. the protein has to be digested in the stomach before absorbed there.
What is the colon and what role does it have in digestion?
The rectum is the final part of the digestive tract, and is where faeces, the waste products of digestion, are stored until they are expelled from the body. All the waste will then leave by the anus.
Why does bile juice has no digestive enzymes?
Your liver produces bile, which is stored in the gall bladder until it's triggered by eating foods that contain fat. Bile is then released into the small intestine where it works like a detergent to emulsify the fats into smaller droplets. This makes it easier for pancreatic lipase to break down the fat. If people who don't have a gall bladder eat a lot of fatty foods, the fat isn't digested and acts as a laxative.
Does both chemical and mechanical digestion break down food into smaller units?
Yes, both chemical and mechanical digestion break down food into smaller units.
It may not go low enough for you to actually faint but can make you feel weak as a kitten. Other symptoms include but are not restricted to:
Short temper
Spots in front of the eyes
Shakiness
Sweating for no obvious reason
An overwhelming desire to complete whatever you are currently doing (seriously, it's weird like that!)
Adrenaline gets released when sugar levels drop and this can prompt the liver to start producing it's own glucose - hence high levels can often follow a really severe low.
None of these symptoms should be taken as a definite indication of low blood sugar in themselves: they have to be backed up by a blood sugar test. Test kits can be obtained from most, if not all, chemists for a really reasonable price. Continually low or high results need inspection by a doctor! Obviously! And if you're at all concerned then see a doctor anyway. The test for dodgy blood sugar levels is so simple these days that no medic can begrudge you!
Which organs are involved in elimination?
Deb
A Broad Opinion That Includes Several Organ SystemsThere are several organ systems that are involved in the process of excretion; the pores of the skin that excrete oil and sweat, the lungs which excrete carbon dioxide, the rectum via the anal canal and anus that excretes feces, and the urinary tract which excretes urine via the urethra. An Opinion That Considers Only the Urinary SystemSome anatomists consider the kidneys as the only excretory organ. The filtration of wastes is conducted by nephrons in the renal cortex in special chambers called Bowman's capsules (There are about 1.25 million of them in each kidney) that create filtrate. After the body reabsorbs water, glucose, sodium, and other important products, the remainder is called urine and is collected in the renal medulla. It takes about 25 gallons of blood filtered by the kidneys to produce one day's worth of urine. That is a ratio of about 100 to 1.From here the remaining filtrate (urine) it enters the renal pelvis (a chamber) which leads to the ureters, the bladder, and finally the urethra which allows the urine to be excreted outside the body.Kidneys, lungs, bowel, skin.
Since you've said organs, I'd have to include skin; however, keep in mind that, although it doesn't seem like it, but the skin is made of many glands and receptors (detectors) alongside other parts: the pores of the skin which excrete sweat produced by sweat glands can be considered the excretory parts.
Which term describes drug administration taken into the body through the digestive tract?
A suppository is the method used to give a drug through the intestine.
Where is the food is broken down by powerful acids and turned into chyme?
it mostlie is brokendown by your teeth and then they go to your stomect and it is turned into chemicals in your stomcht
What is the relationship between bile ducts and hepatic ducts?
The "hepatic ducts" carry bile through the liver to the junction with the "cystic duct" (which flows both ways to the gall bladder). The final connection to the intestine is through the "common bile duct". So that while "bile duct" can refer to any of these tubes, the more specific "hepatic duct" refers to the tubes directly from the producing glands in the liver. (see related link)
Why is it necessary to digest the food?
To break up the food that you eat so it does not stay in you.
What time should you stop eating foods?
The best time to stop eating to not gain weight is about 7 or 8 pm. I have also heard just to try to stop eating two hours before your bed time.
But the best thing to do to not gain weight is to wake up early and eat a well balanced breakfast. Eating a good breakfast allows for your metabolism to start up early in the morning and allow for maximum calorie burn throughout your day, so keep that in mind too!
Why are your feces very bloody?
If you have bright red blood, it probably means you have a hemorrhoid or fissure (slight tear in the anus) which has broken open and is bleeding - it will heal without any problem, but breaking open means you need to be sure to get enough fiber and drink enough liquids from now on so you don't get constipated and have hard dry feces that tear your skin any more.
If it continues to bleed, let your doctor look at it.
If you have black, tarry looking blood, that is a serious warning sign and should be seen as soon as possible by a doctor.
Is the digestive system a part of the excretory system?
No, the digestive system includes the stomach, intestines, mouth, esophagus, etc. that have to do with solid foods and wastes. The bladder is in the urinary system which includes the urinary bladder, kidneys, ureters, etc. that have to do with fluid elimination and liquid wastes.
What is the difference between the Ileum and the Duodenum?
Distinguishing feature of the duodenum are the Brunner's glands, whereas the Peyer's patches make the ileum easily identificable. The common bile duct and the pancreatic duct enter the duodenum, whereas the ileum does not receive duct from other organs. Outermost layer of the duodenum is comprised of adventitia as it is located retroperitoneally, while the outermost layer of the ileum is represented by serosa(mesothelial cell are evident). The ileum has also more goblet cells than the duodenum. Duodenum represents major site of iron absorption, while the ileum-B12 absorption.
