Structures and functions of the human digestive system
The duodenum is the first section of the twenty two foot long small intestine. I have been taking mg capsules for about 3 weeks now and have not really noticed anything. Other related conditions include: The esophagus remains as a simple, straight tube. Another option that works very well is eating a ripe banana. Aloe Vera itself has been known for centuries as one of the most beneficial plants to mankind. The other product is True Aloe.
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Made up of three segments, the duodenum, jejunum, and ileum, the small intestine is a long tube loosely coiled in the abdomen spread out, it would be more than 20 feet long. The small intestine continues the process of breaking down food by using enzymes released by the pancreas and bile from the liver.
Bile is a compound that aids in the digestion of fat and eliminates waste products from the blood. Peristalsis contractions is also at work in this organ, moving food through and mixing it up with digestive secretions. The duodenum is largely responsible for continuing the process of breaking down food, with the jejunum and ileum being mainly responsible for the absorption of nutrients into the bloodstream.
Three organs play a pivotal role in helping the stomach and small intestine digest food:. Among other functions, the oblong pancreas secretes enzymes into the small intestine. These enzymes break down protein, fat, and carbohydrates from the food we eat. The liver has many functions, but two of its main functions within the digestive system are to make and secrete bile, and to cleanse and purify the blood coming from the small intestine containing the nutrients just absorbed.
The gallbladder is a pear-shaped reservoir that sits just under the liver and stores bile. Bile is made in the liver then if it needs to be stored travels to the gallbladder through a channel called the cystic duct.
During a meal, the gallbladder contracts, sending bile to the small intestine. Once the nutrients have been absorbed and the leftover liquid has passed through the small intestine, what is left of the food you ate is handed over to the large intestine, or colon. The colon is a 5- to 6-foot-long muscular tube that connects the cecum the first part of the large intestine to the rectum the last part of the large intestine.
It is made up of the cecum, the ascending right colon, the transverse across colon, the descending left colon, and the sigmoid colon so-called for its "S" shape; the Greek letter for S is called the sigma , which connects to the rectum.
Stool, or waste left over from the digestive process, is passed through the colon by means of peristalsis contractions , first in a liquid state and ultimately in solid form as the water is removed from the stool. A stool is stored in the sigmoid colon until a "mass movement" empties it into the rectum once or twice a day.
It normally takes about 36 hours for stool to get through the colon. The stool itself is mostly food debris and bacteria. At 3 or 4 inches around about 7 to 10 centimeters , the large intestine is fatter than the small intestine and it's almost the last stop on the digestive tract. Like the small intestine, it is packed into the body, and would measure 5 feet about 1. The large intestine has a tiny tube with a closed end coming off it called the appendix say: It's part of the digestive tract, but it doesn't seem to do anything, though it can cause big problems because it sometimes gets infected and needs to be removed.
Like we mentioned, after most of the nutrients are removed from the food mixture there is waste left over — stuff your body can't use. This stuff needs to be passed out of the body. Can you guess where it ends up? Well, here's a hint: It goes out with a flush. Before it goes, it passes through the part of the large intestine called the colon say: CO-lun , which is where the body gets its last chance to absorb the water and some minerals into the blood.
As the water leaves the waste product, what's left gets harder and harder as it keeps moving along, until it becomes a solid. Yep, it's poop also called stool or a bowel movement. The large intestine pushes the poop into the rectum say: REK-tum , the very last stop on the digestive tract.
The solid waste stays here until you are ready to go to the bathroom. When you go to the bathroom, you are getting rid of this solid waste by pushing it through the anus say: There's the flush we were talking about! You can help your digestive system by drinking water and eating a healthy diet that includes foods rich in fiber. High-fiber foods, like fruits, vegetables, and whole grains, make it easier for poop to pass through your system. The digestive system is a pretty important part of your body.
Without it, you couldn't get the nutrients you need to grow properly and stay healthy. And next time you sit down to lunch, you'll know where your food goes — from start to finish! For specific medical advice, diagnoses, and treatment, consult your doctor. The pancreas connects to the liver and the gallbladder with the common bile duct. As pancreatic juices are made, they flow into the main pancreatic duct, and then join the common duct — which allows the bile which helps to digest fat break down food before it reaches the small intestine.
When the chyme our juices that are being digested leaves the stomach, it enters the small intestine through the pyloric sphincter — a muscle that serves as a valve and prevents the regurgitation of food from the intestine back into the stomach. It transforms from an acidic environment to an alkaline one, which means that the acids are neutralized. The small intestine is lined with very small protrusions that increase the surface area of the intestinal wall, which creates a larger absorption area.
Each protrusion, called villi, is covered in smaller hair-like structures, which are called microvilli. Enzymes exist on the villi, helping further break down nutrients into a readily absorbable form. It is the job of the villi that help prevent leaky gut. Leaky gut is when the bowel lining is damaged. The folds in the small intestine are used to maximize the digestion of food and the absorption of nutrients. By the time food leaves the small intestine, around 90 percent of all nutrients have been extracted from the food that entered it.
Once the nutrients have been absorbed, the liquid that is left over passes through the small intestine and goes to the large intestine, or colon. Once the juices that used to be your food leave your small intestine, they enter your large intestine. At this point, most of the nutrient absorption has happened, but water, fat soluble vitamins and minerals can be absorbed in the colon as well. The naturally present bacteria that are present in your colon will continue to help with digestion; these gut bacteria are called flora.
Flora breaks down wastes and extracts small amounts of nutrients whatever is left. The waste that is left over will exit the body from the colon by means of peristalsis, which are contractions that move the waste to the anal canal. At first the waste is in a liquid state, but as it moves through the colon, the water is removed and it becomes the solid form of stool. The stool is mostly food debris and bacteria; the bacteria fuse vitamins, process waste and food particles, and protect us against harmful bacteria.
It takes about 36 hours for stool to get through the colon, and when the colon becomes full, it empties its contents into the rectum, which begins the elimination process. The way we live and eat has a direct impact on our digestive system and how well it functions. By taking steps to improve your digestive health, your digestive system will function more efficiently, and this will improve your overall health. From the sound of it, you might think leaky gut only affects the digestive system, but in reality it can affect more.
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