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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 role of the mucus that lines the stomach?
they produce a chemical used in your brain for you memory and the thinner you are the better memory you have so just let it be. your fat youre dumb youre skinny your smart an there you have it
What is a good digestive system conclusion to an essay?
The digestive system starts working as soon as 5he food touches the lips and is ingested. The various organs work together to run this machinery.The nerves and hormones control the actions of the internal organs there are machanical and chemical processes that work simultaneously to digest the food and provid energy to the body All the steps in this process are necessary and important for this machine to run in a healthy manners
Where is the esophagus located in the ventral or dorsal?
The esophagus is right behind the trachea, in line with it. In anatomical terms, both are located medially; neither is lateral to the other. The esophagus is dorsal or posterior to the trachea. The trachea is anterior or ventral to the esophagus.
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Does the diestive system digest liquids?
Well, for part of the trip, liquids do travel through the digestive system, however, liquids don't need that much digesting.
While food would travel through the digestive system and go into the rectum, and eventually deposit through the anus, liquids are processed through the urinary system, which involves organs such as the kidneys and the ureters, and eventually is stored in the bladder. This liquid, now urine, is exerted through a tube-like organ in the penis.
What allows food particles to pass form the intestine to the circulatory system called?
Absorption is the process that allows food to move from the small intestine to the blood stream. Absorption is critical because it allows the nutrients to be used by cells throughout the body.
Does a planarian have a one way digestive system?
The gut is lined with a single layer of endodermal cells which absorb and digest food.
What is a lump of chewed food called?
A chewed up lump of food is called a bolus. A bolus can be made up of any kind of food, and it is a combination of the food that was eaten and saliva.
The last function of the digestive system is?
The main function of the Digestive sytem is to absorb food nutrients and then get the rest out. This is how it goes. First you get the food inside your mouth and chew it up into bits. Then it goes through the Esophagus where the stomach releases acids, breaking the food up even more. That`s where it goes through the small intestine, where the nutrients get absorbed as well as other stuff. Then it goes through the large intestine, where the Urinary system does the rest of work.
Your appendix is at the Ileocecul junction, which is where the ileum from your small intestine and the cecum from your colon meet. It is located on the right lower quadrant of your abdomen.
The appendix is located at the lower right quadrant of the abdomen and it is connected to the cecum which is part of the large intestine. The cecum is a pouch at the beginning of the large intestine and not the end, the end is the anus.
There have been some cases where the location has been more mid-abdomen, which can cause dangerous delays in diagnosis.
The appendix is usually located in the right lower quadrant of the abdomen, near the right hip bone.
Its position within the abdomen corresponds to a point on the surface known as McBurney's point.
While the base of the appendix is at a fairly constant location, 2 cm below the ileocecal valve,
the location of the tip of the appendix can vary from being retrocecal (behind the cecum) (74%) to being in the pelvis to being extraperitoneal (occurring or located outside the peritoneal cavity).
Where is the serosa in the stomach?
The serosa (serous membrane) of the abdominal cavity wall is known as the parietal peritoneum.
by rhnking@hotmail.com
Actually if you don't have more then five apples a day (which most people don't) then apples are supposedly goodfor your digestive system. Apples contain fibre so if helps sped this up in your colon.
What nutrient takes the longest to digest?
A diet that is rich in fibre is great for digestion and can also prevent constipation.
An easy nutrient to digest is lean, high quality protein. This includes things such as: poultry, fish, tofu, low-fat dairy, etc, They tend to be easy due to their low fibre content.
If you'd like to learn more I suggest clicking the link in my bio.
How is carbohydrates digested in the alimentary canal?
It is digested in the salivary glands and pancreas by the enzyme amylase. Converted into disaccharides.
How long does the food take to digest?
If you're describing bulimia and are thinking about doing it or already are doing it, stop right now. You can do irreversable damage to your body and can even die. Nothing is worth that. Incidentally, your body begins to digest food immediately after eating. Well actually that "digestion" is only mechanical digestion (breaking the food down into smaller bits) and is only absorbed into the body come time for the food to go into the small intestine (sometimes 4 hours later) .. however some carbs are absorbed through the stomach in digestion.
What are the organs that food passes through as it goes through the digestive system?
The organ system that includes the gastrointestinal tract (GI tract) and its accessory organs. The digestive system processes food into molecules that can be absorbed and utilized by the cells of the body. Food is broken down, bit by bit, until the molecules are small enough to be absorbed and the waste products are eliminated. The gastrointestinal (GI) tract, also called the digestive tract, alimentary canal, or gut, consists of a long continuous tube that extends from the mouth to the anus. It includes the following regions:
- mouth
- pharynx
- esophagus
- stomach
- small intestine
- large intestine
- rectum
- anus
The tongue and teeth are accessory structures located in the mouth. The salivary glands, liver, gallbladder, and pancreas are major accessory organs that have a role in digestion. These organs secrete fluids into the GI tract.
Food undergoes three types of processes in the body:
- digestion
- absorption
- elimination
Digestion and absorption occur in the GI tract. After the nutrients are absorbed, they are available to all cells in the body and are utilized by the body cells in metabolism.
Anatomy of the digestive system
The MOUTH contains the tongue which is covered with tiny projecting papillae through which are conveyed sensations of taste and touch; the teeth, 32 in number of which 8 are called incisors, 4 canines, 8 premolars, and 12 molars; and the salivary glands, which secrete saliva.
The process of digestion starts in the mouth. Food is masticated (chewed) by the teeth, moistened by the saliva, which contains important chemical substances for changing it, and rolled by the tongue. It is hen pushed backward by the tongue into
The PHARYNX, a funnel-shaped opening which is the continuation of the mouth. The food then passes down
The ESOPHAGUS, or gullet. This is a very elastic, muscular tube about eight to ten inches long. The food is forced onward by the involuntary contractions of the muscles in the esophagus. It passes from the esophagus into the stomach.
The CARDIAC OPENING or ORIFICE relaxes to allow the food to pass through, and then closes again.
The STOMACH can hold about a liter. It is made up of layers of muscular fibers which contract and churn the food, breaking it up still further. The inner layer of the stomach contains numerous glands. These secrete gastric juice, which carries on the process of digestion begun in the mouth by the saliva. About half-an-hour after food has been eaten, the stomach begins to discharge its contents, now reduced to a thin, gruel-like liquid (chyme) through
The PYLORUS, the exit of the stomach, consisting of a band of muscular fibers which relaxes from time to time to allow food to pass into the
The SMALL INTESTINE, the first part of the intestinal tube through which food passes on leaving the stomach. It is about 20 to 22 feet (6.1 to 6.7 meters) long and about 1½ to 2 inches (3.8 to 5.1 cm) in diameter at first, narrowing slightly toward its lower end. It is made up of three parts: the upper part, known as the duodenum, is about 11 inches (28 cm) long, and receives the juices of the two most important glands of the digestive system, the liver and the pancreas. These convert the food still further so that it is in a state in which it can be absorbed by the body. The middle part of the small intestine is known as the jejunum (for the Latin for "empty" because food is seldom found in it after death). It is about 8 to 9 feet (2.4 to 2.7 meters) long. After passing through this the food goes on to the longest and most coiled or twisted part of the intestine, known as the ileum, about 12 feet (3.7 meters) long. Its wall is covered by about 5 million tiny projections resembling hairs called villi. These absorb the nourishment from the food.
The LIVER is the largest gland of the human body, with a weight of about 3 to 3½ lb (1.4 to 1.6 kg). It secretes bile, a greenish, bitter juice which breaks up the fatty part of the food into tiny drops. Bile from the liver is collected in the gall-bladder from which it flows into the intestine.
The PANCREAS is a small gland which secretes pancreatic juice. This plays an important part in the chemical change of food. The food then passes to
The LARGE INTESTINE which is about 5 to 6 feet (1.5 to 1.8 meters) long, and which consists of the cecum, the colon, and the rectum. In the colon most of the water is absorbed from the food residues. The semisolid feces which remain pass through the rectum and out of the body.
Saliva is the watery liquid produced in the mouth to aide chewing and digestion of food
Saliva consists of mainly water. It also has ions, enzymes and salivary proteins which acts as a protective mechanism for our teeth.
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What part of the stomach functions as a mixing chamber for food and secretions?
the body of the stomach
What does pancreatic lipase break down?
The pancreas is the main digestive gland in our body and it secretes these enzymes:
- Trypsin: a protease that cleaves proteins at the basic amino acids.
- Chymotrypsin: a protease that cleaves proteins at the aromatic amino acids.
- Steapsin: which degrades triglycerides into fatty acids and glycerol.
- Carboxypeptidase: a protease that takes off the terminal acid group from a protein
- Several elastases: which degrade the protein elastin and some other proteins.
- Several nucleases: which degrade nucleic acids, like DNAase and RNAase
- Pancreatic amylase: degrades starch, glycogen and most other carbohydrates.
What substance in the stomach helps digestion?
The Stomach is where Proteins are digested. This needs an acid environment and enzymes like pepsin. The digested proteins are not absorbed into the body by the stomach - this happens further down the alimentary tract.
Which part of the digestive system does not produce a digestive enzyme?
the gall bladder- this stores bile from the liver, the oesophaugus (even though it isn't an organ but a muscle), the rectum and anus. The salivary glands (saliva/spit), stomach (hydraulic acid), liver (bile) and the small intestine (carbohydrase, protese and lipase) all produce some sort of digestive enzymes.
Which organ of body responsible for proteins digestion only?
Protein digesting enzymes (protease) are found throughout the digestive system. In the stomach, pepsin begins the breakdown of ptrotein into amino acids. The process continues in the small intestine, where protease is secreted by the intestine and the pancreas.
Of all the protein ingested, trypsin can catalyze each protein strand; however it can only catalyze specific locations along the strand. Due to a charged side chain on its external surface, trypsin specializes in attracting positively charged amino acids for catalysis. Upon being drawn in, either lysine or arginine residues are cleaved at their carboxyl side. This helps break up very long polypeptides into smaller fragments for other proteases to work on.
How might stress affect the digestive system?
When stressed, the part of the brain(central nevous system)responsible for the stimulation of the digestive ezymes to perform their digestive functions,will feel too weak and stressed to perform its function of stimulating the ezymes thereby given rise to constipation.
