Table of Contents
What is Alimentary Canal ?
The alimentary canal is the long, coiled tube that runs from the mouth to the anus. It is also called the digestive tract. The canal is made up of four parts: the mouth, the esophagus, the stomach, and the intestines. The canal breaks down food so the body can use the nutrients in it.
The Alimentary Canal Consists of:
The alimentary canal consists of the mouth, esophagus, stomach, small intestine, and large intestine. The alimentary canal is responsible for the digestion of food and the absorption of nutrients.
Parts of the Large Intestine:
The large intestine is a long, coiled tube that extends from the small intestine to the anus. It is about 5 feet long in adults. The large intestine is divided into four sections: the cecum, the colon, the rectum, and the anus.
The cecum: It is the first section of the large intestine. It is a small, pouch-like structure that hangs down from the lower part of the small intestine. The cecum is connected to the colon by a small, tube-like structure called the ileum.
The colon: It is the second section of the large intestine. It is a long, coiled tube that extends from the cecum to the rectum. The colon is divided into four sections: the ascending colon, the transverse colon, the descending colon, and the sigmoid colon.
The ascending colon: It is the first section of the colon that extends from the cecum to the hepatic flexure. The hepatic flexure is a bend in the colon that is located near the liver.
The transverse colon: It is the section of the colon that extends from the hepatic flexure to the splenic flexure. The splenic flexure is a bend in the colon that is located near the spleen.
The descending colon: It is the section of the colon that extends from the splenic flexure to the rectum.
The sigmoid colon: is the
Alimentary Canal
The alimentary canal is a long, coiled tube that extends from the mouth to the anus. It is responsible for the digestion and absorption of food and the elimination of wastes. The canal is divided into three sections: the oral cavity, the esophagus, and the gastrointestinal tract.
The oral cavity is the first section of the canal. It includes the mouth and the teeth, which are used to chew and grind food. The esophagus is the second section of the canal. It is a muscular tube that carries food from the mouth to the stomach. The gastrointestinal tract is the third section of the canal. It includes the stomach and the intestines, which are responsible for the digestion and absorption of food. The anus is the final section of the canal. It is the opening through which wastes are eliminated from the body.
Organs of the Alimentary Canal
The alimentary canal is the system of organs in the body that helps to digest food. The canal is made up of the mouth, esophagus, stomach, small intestine, and large intestine. The organs in the alimentary canal work together to break down food and absorb the nutrients from it.
Mouth
The mouthfeel of a food or drink is the way it feels in the mouth. It can be described as rough, smooth, slimy, or sticky. It can also be described as wet, dry, or sticky.
The oral cavity
is a moist and dark environment that is home to many types of bacteria. The mouth is constantly exposed to food and drink, which can contain bacteria. Bacteria can also be introduced into the mouth through contact with other people’s skin, saliva, or shared objects. Bacteria that live in the mouth can cause tooth decay and gum disease.
Teeth
whitening is a cosmetic dental procedure used to lighten the color of teeth. Teeth whitening can be done at home or in a dental office.
At-home teeth whitening kits typically contain a whitening gel that is placed on the teeth and a light that is used to activate the gel. In a dental office, the whitening gel is typically applied to the teeth and then a laser or light is used to activate the gel.
Teeth whitening is not permanent and the results may vary.
Pharynx
The pharynx is the part of the throat that lies behind the mouth and nasal cavity and in front of the esophagus and larynx. It is the common passage for food and air.
Esophagus
The esophagus is a muscular tube that carries food and liquids from the throat to the stomach.
The esophagus has three layers:
The innermost layer is made up of cells that produce mucus.
The middle layer is made up of muscles that contract and push food and liquids down the esophagus.
The outer layer is made up of a tough membrane that protects the esophagus.
Stomach
The stomach is a muscular, sac-like organ in the upper abdomen that stores food, digests food, and neutralizes stomach acids.
Small Intestine
The small intestine is a long, coiled tube that measures about 20 feet long in adults. It is located in the abdominal cavity, between the stomach and the large intestine. The small intestine is responsible for the absorption of food and liquids from the gastrointestinal tract.
The small intestine is divided into two sections: the duodenum and the ileum. The duodenum is the first section of the small intestine and is about 10 inches long. The ileum is the second section of the small intestine and is about 10 feet long.
The small intestine is lined with a thin layer of tissue called the epithelium. The epithelium is responsible for the absorption of nutrients from food. The small intestine also has a number of glands that produce digestive juices. These digestive juices help to break down food and absorb nutrients.
The small intestine is connected to the stomach by the pyloric sphincter. The pyloric sphincter is a muscle that controls the flow of food and liquids from the stomach to the small intestine.
The small intestine is also connected to the large intestine by the ileocecal valve. The ileocecal valve is a muscle that controls the flow of food and liquids from the small intestine to the large intestine.
Large Intestine
The large intestine is about 1.5 meters long and is divided into the cecum, the ascending colon, the transverse colon, the descending colon, and the sigmoid colon. The large intestine absorbs water and electrolytes from food residues in the small intestine and stores fecal matter prior to elimination.
The cecum is a small pouch at the junction of the small and large intestines. The ascending colon carries fecal matter from the cecum to the transverse colon. The transverse colon carries the fecal matter to the descending colon. The descending colon carries the fecal matter to the sigmoid colon. The sigmoid colon is the final section of the large intestine prior to the rectum and anus. The sigmoid colon curves inward and has a smooth muscle that helps move the fecal matter forward.
