details of parts of the alimentary canal
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Question:How the Structure of the alimentary canal interrelates to bring about movement of digesting food through the alimentary canal and the absorpbtion of nutrients into the bloodstream...
All i know it consists of Villi, mucousa, submucosa, muscularis and serosa!
Thanks in advance
Answers:The parts of the alimentary canal:
Mouth --> Pharynx --> Esophagus --> Stomach --> Small Intestine --> Large Intestine --> Anus
Food begins breaking down in the mouth by both mechanical digestion(chewing) and chemical digestion(salivary enzymes such as amylase(which breaks down carbohydrates), etc.)
Food then passes from the mouth down the pharynx, specifically the oropharynx.
From the pharynx food passes down the esophagus by peristalsis(smooth muscle contractions).
From the esophagus, food passes into the stomach where it is both chemically and mechanically digested. The stomach has three layers of muscle to "churn" the food(mechanical) and HCL(hydrochloric acid) and enzymes to chemically break down food.
From the stomach, nutrients from the food are absorbed in the small intestine.
After the small intestine, mostly water is absorbed in the large intestine and our intestinal flora digests undigested food(both small and large intestines are colonized by bacteria - they are harmless, we live in mutualism with them).
From the intestines, we pass out the waste through the anus.
All this is also done with the help of accessory digestive organs(organs where food does not pass though, e.g. liver, gallbladder, etc.)
All parts of the alimentary canal(also known as GI tract) are made of a mucosa, submucosa, muscularis and serosa(or adventia if the organ is retroperitoneal). These are called the histological layers and they differ from organ to organ.
Only the small intestine has villi and microvilli - these are organ specific for absorption of nutrients.
Put in some additional details if you need more specific info.
Question:u can details of alimentary canal in thebook of human anatomy.
it says about the section of the stomach.
these r the clues to u.
Answers:Alimentary Canal, in anatomy, the principal part of the digestive system. It begins at the mouth and ends at the anus, having, in humans, an average length of about 9 m (30 ft). Passing through the head, neck, and body, it includes the mouth, pharynx, oesophagus, stomach, small intestines, caecum, and large intestines.
Question:I'm meant to write a paper on the alimentary canal and I'm not too sure where it end. Ive talked about the mouth, oesophagus, stomach, small intestine and large intestine. Is there anymore? If so, what else??? Also, where do I talk about amino acids???
Answers:Upper gastrointestinal tract
The upper GI tract consists of the mouth, pharynx, esophagus, and stomach.
The mouth contains the buccal mucosa, which contains the openings of the salivary glands; the tongue; and the tooth.
Behind the mouth lies the pharynx, which leads to a hollow muscular tube, the esophagus.
Peristalsis takes place, which is the contraction of muscles to propel the food down the esophagus which extends through the chest and pierces the diaphragm to reach the stomach.
Lower gastrointestinal tract
The lower GI tract comprises the intestines and anus.
Bowel or intestine
Small intestine, which has three parts:
Large intestine, which has three parts:
Cecum (the vermiform appendix is attached to the cecum).
Colon (ascending colon, transverse colon, descending colon and sigmoid flexure)
The accessory organs include: salivary glands, liver, gallbladder, and pancreas.
Amino acids produced by digestion of proteins and peptides (In stomach and small intestine) and processed in liver.
Question:Which are part of the digestive process...
Answers:It would have been easier to ask what organs are included in the alimentary canal.
Alimentary canal includes teeth, mouth, salivary glands, tongue, esophagus, stomach, small intestine, large intestine, pancreas liver and gall bladder. All other organs in the body are not part of the alimentary canal. Some organs mentioned have dual function, in alimentary system and in other systems.
Alimentary canal and Action of enzymes :Check us out at www.tutorvista.com Tube through which food passes in animals it extends from the mouth to the anus and forms a large part of the digestive system. In human adults, it is about 9 m/30 ft long, consisting of the mouth cavity, pharynx, oesophagus, stomach, and the small and large intestines. It is also known as the gut. It is a complex organ, specifically adapted for digestion and the absorption of food. Enzymes from the wall of the canal and from other associated organs, such as the pancreas, speed up the digestive process. The muscles in the wall of the alimentary canal contract, mixing food with the enzymes and slowly pushing it along in the direction of the anus in a process known as peristalsis. Dietary fibre encourages this movement. The constant stream of enzymes from the canal wall and from the pancreas assists the breakdown of food molecules into smaller, soluble nutrient molecules, which are absorbed through the canal wall into the bloodstream and carried to individual cells. The wall of the canal receives an excellent supply of blood and is folded so as to increase its surface area. These two adaptations ensure efficient absorption of nutrient molecules.Enzymes are proteins that catalyze (ie, increase the rates of) chemical reactions. In enzymatic reactions, the molecules at the beginning of the process are called substrates, and the enzyme converts them into different molecules, called the products. Almost all processes in a biological cell ...
Alimentary Canal/Digestive System Song :I NEEDED to study for biology, but I WANTED to play guitar...this is what resulted. (c) 2009 Ian Stahl Here are the lyrics For all of you who will take biology. This is for you. The Alimentary Canal/Digestive System Song First you chew the food up in your mouth Preparing it for its journey south The salivary amylase Puts polysaccharides in their place The stomach makes proteins disintegrate Using pepsin and other proteases Making peptides ready for further digestion In the small intestine Now in the lumen everybodys equal The small intestine of course has a sequel But were not there yet Well get there soon, oh you can bet! The pancreas secretes stuff for the win Like amylase and chemotropism Making maltose and disaccharides Dont forget the smaller polypeptides While the pancreatic nucleases Rearranges DNAs helixed faces Into smaller nucleotides I promise you that Im not telling lies Even the fats can be found at fault By using those miraculous Bile salts You cant forget gallbladder hed be hurt He helps so much with his big ol squirt. Those fats never stood a chance Lipase makes their digestion enhanced In the epithelium You probably wont find helium But Ill tell you what you will find Monosaccharides and amino acids Nucleosidases and phosphatases Sugars, phosphates and nitrogenous bases I promise that Im almost done Now its time weve reached the end Were in the small intestine The colon is the biggest part Approximately 1.5 meters from the start The large intestine does ...