Describe the structure of alimentary canal of man?

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.

Answer 1

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.

Answer 2

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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.

Answer 3

That's Alimentary my dear Watson

Answer 4

In a normal human adult male, the GI tract is approximately 7.5 meters long (25 feet) and consists of the following components:


[edit] Upper gastrointestinal tract
Mouth (buccal cavity) includes salivary glands, buccal mucosa with openings of major and minor salivary glands, tongue and teeth. Mouth leads to pharynx, which is behind the mouth. Pharynx in turn leads into a hollow muscular tube called esophagus. Esophagus extends through the whole of chest, into the stomach. Stomach is a muscular cavity. Stomach which includes the antrum and pylorus and pyloric sphincter.

Answer 5

r un taking my test ? if u want toknow pl take your text book & study.

Answer 6

if u really know where to find it....then why r u wasting ur points for?