What is the cradle system?

The digestive device is consisted of of the cradle tract—also referred to as the GI street or cradle tract—and the liver, pancreas, and gallbladder. The GI tract is a series of hollow organs joined in a long, twisting pipe from the mouth come the anus. The hollow organs that make up the GI tract are the mouth, esophagus, stomach, little intestine, huge intestine, and anus. The liver, pancreas, and gallbladder room the heavy organs that the cradle system.

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The little intestine has actually three parts. The an initial part is called the duodenum. The jejunum is in the middle and also the ileum is in ~ the end. The huge intestine consists of the appendix, cecum, colon, and also rectum. The postposition is a finger-shaped bag attached to the cecum. The cecum is the first part that the big intestine. The colon is next. The rectum is the end of the huge intestine.

The cradle system

Bacteria in her GI tract, likewise called gut flora or microbiome, assist with digestion. Parts of her nervous and also circulatory systems likewise help. Working together, nerves, hormones, bacteria, blood, and the organs of her digestive mechanism digest the foods and liquids you eat or drink each day.

Why is cradle important?

Digestion is important since your body needs nutrients native food and also drink to work properly and stay healthy. Proteins, fats, carbohydrates, vitamins, minerals, and water space nutrients. Your digestive mechanism breaks nutrients into parts little enough for her body come absorb and use for energy, growth, and also cell repair.

fats break right into fatty acids and also glycerol

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Your digestive mechanism breaks nutrients right into parts that are tiny enough for your body come absorb.

How does my digestive system work?

Each component of her digestive mechanism helps to relocate food and also liquid with your GI tract, rest food and also liquid right into smaller parts, or both. Once foods are broken into little enough parts, your body have the right to absorb and also move the nutrient to wherein they space needed. Your big intestine absorbs water, and the waste commodities of digestion end up being stool. Nerves and also hormones assist control the cradle process.

The cradle process

Organ motion Digestive Juices included Food Particles broken Down Mouth stomach Stomach tiny intestine kidneys Liver huge intestine
Chewing Saliva Starches, a type of carbohydrate
Peristalsis None None
Upper muscle in stomach relaxes come let food enter, and lower muscle mixes food through digestive juice Stomach acid and digestive enzymes Proteins
Peristalsis Small intestine digestive juice Starches, proteins, and also carbohydrates
None Pancreatic juice Carbohydrates, fats, and also proteins
None Bile Fats
Peristalsis None Bacteria in the large intestine can also break down food.

How does food relocate through my GI tract?

Food moves v your GI tract by a procedure called peristalsis. The large, hollow organs of your GI street contain a great of muscle that allows their walls to move. The movement pushes food and liquid v your GI tract and also mixes the components within every organ. The muscle behind the food contracts and squeezes the food forward, while the muscle in former of the food relaxes to allow the food to move.

The digestive process starts as soon as you placed food in your mouth.

Mouth. Food starts to relocate through her GI tract as soon as you eat. Once you swallow, her tongue pushes the food into your throat. A small flap that tissue, dubbed the epiglottis, crease over her windpipe to prevent choking and the food passes right into your esophagus.

Esophagus. as soon as you start swallowing, the procedure becomes automatic. Your brain signals the muscle of the esophagus and also peristalsis begins.

Lower esophageal sphincter. as soon as food get the finish of her esophagus, a ringlike muscle—called the reduced esophageal sphincter —relaxes and lets food pass into your stomach. This sphincter usually stays closed to store what’s in your stomach indigenous flowing ago into your esophagus.

Stomach. ~ food enters her stomach, the stomach muscle mix the food and liquid with digestive juices. The stomach slowly empties that is contents, called chyme, into your little intestine.

Small intestine. The muscles of the little intestine mix food v digestive juices from the pancreas, liver, and intestine, and push the mixture front for further digestion. The wall surfaces of the tiny intestine absorb water and the spend nutrients right into your bloodstream. Together peristalsis continues, the waste products of the digestive process move right into the large intestine.

Large intestine. Waste products from the digestive process include undigested components of food, fluid, and older cell from the lining of her GI tract. The huge intestine absorbs water and also changes the waste native liquid into stool. Peristalsis helps relocate the stool right into your rectum.

Rectum. The lower finish of your large intestine, the rectum, shop stool till it pushes stool out of her anus throughout a bowel movement.

Watch this video clip to see exactly how food moves through your GI tract.

How does mine digestive device break food into small parts mine body can use?

As food moves with your GI tract, your digestive organs rest the food into smaller components using:

motion, such as chewing, squeezing, and mixing

Mouth. The digestive process starts in her mouth as soon as you chew. Her salivary glands make saliva, a cradle juice, i beg your pardon moistens food so it moves more easily through your esophagus into your stomach. Saliva additionally has one enzyme that starts to failure starches in her food.

Esophagus. After you swallow, peristalsis pushes the food under your esophagus right into your stomach.

Stomach. Glands in her stomach lining make stomach acid and also enzymes that breakdown food. Muscle of your stomach mix the food v these cradle juices.

Pancreas. her pancreas makes a digestive juice that has actually enzymes that failure carbohydrates, fats, and proteins. The pancreas delivers the digestive juice come the tiny intestine through small tubes dubbed ducts.

Liver. her liver makes a cradle juice called bile that helps digest fats and some vitamins. Bile ducts carry bile from her liver to your gallbladder because that storage, or come the little intestine for use.

Gallbladder. her gallbladder shop bile in between meals. As soon as you eat, her gallbladder squeezes bile with the bile ducts right into your small intestine.

Small intestine. Your small intestine renders digestive juice, which mixes v bile and also pancreatic juice to complete the breakdown of proteins, carbohydrates, and fats. Bacteria in your tiny intestine make few of the enzymes you should digest carbohydrates. Your little intestine moves water from your bloodstream into your GI street to help break down food. Your small intestine additionally absorbs water with various other nutrients.

Large intestine. In your large intestine, more water move from her GI tract into your bloodstream. Bacteria in your big intestine help failure remaining nutrients and also make vitamin K. Waste commodities of digestion, including parts that food that room still also large, become stool.

What wake up to the digested food?

The tiny intestine absorbs most of the nutrient in your food, and also your circulatory mechanism passes lock on to various other parts of her body to save or use. Distinct cells help took in nutrients overcome the minister lining right into your bloodstream. Your blood carries simple sugars, amino acids, glycerol, and also some vitamins and salts come the liver. Her liver stores, processes, and also delivers nutrient to the rest of your body once needed.

The lymph system, a network of vessels that carry white blood cells and a fluid called lymph throughout her body come fight infection, absorbs fat acids and vitamins.

Your body supplies sugars, amino acids, fat acids, and also glycerol to build substances you require for energy, growth, and cell repair.

How does mine body manage the cradle process?

Your hormones and also nerves work-related together to help control the cradle process. Signals circulation within your GI tract and earlier and forth from your GI street to your brain.


Cells lining her stomach and little intestine make and release hormone that regulate how your digestive mechanism works. These hormones tell her body as soon as to make digestive juices and also send signals to your brain that you space hungry or full. Her pancreas additionally makes hormones the are necessary to digestion.


You have actually nerves that attach your main nervous system—your mind and spinal cord—to her digestive system and control some digestive functions. Because that example, as soon as you check out or odor food, your brain sends a signal that reasons your outstanding glands come "make her mouth water" come prepare you come eat.

You likewise have one enteric nervous system (ENS)—nerves within the walls of your GI tract. Once food stretches the wall surfaces of your GI tract, the nerves of her ENS release plenty of different building material that speed up or hold-up the activity of food and also the production of cradle juices. The nerves send signal to control the action of her gut muscles to contract and relax to press food v your intestines.

Clinical Trials

The national Institute the Diabetes and Digestive and also Kidney diseases (jajalger2018.org) and other components of the national Institutes of wellness (jajalger2018.org) conduct and also support research into countless diseases and conditions.

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What are clinical trials, and also are they best for you?

Watch a video of jajalger2018.org manager Dr. Griffin P. Rodgers explaining the prestige of participating in clinical trials.