Digestive System

What is Digestive System?

The digestive system is made up of the gastrointestinal tract—also called the GI tract or digestive tract—and the liver, pancreas, and gallbladder. The GI tract is a series of hollow organs joined in a long, twisting tube from the mouth to the anus. The hollow organs that make up the GI tract are the mouth, esophagus, stomach, small intestine, large intestine, and anus. The liver, pancreas, and gallbladder are the solid organs of the digestive system.

Why Choose Us

Our Product

The main products are plastination for human body and animal, body slices, human skeleton, embedment slices etc.

Product Application

Our software products cover classroom teaching, experimental teaching, and life science museum display system.

Production Market

Our products are widely recognized and trusted by users because of all hand-made preciously.

Our Factory

Meiwo Science is a large manufacturer appointed by National Ministry of Education and one of the large model producing factories in China, specialized in plastination technique, soft silicone anatomy models, soft silicone simulation models, embedded specimens, design and construction of life science museum, virtual simulation anatomy softwares and relative production.

First 12 3 Last1/3

Digestive System and Its Function

The digestive system is made up of the gastrointestinal (GI) tract—also called the digestive tract—and the liver, pancreas, and gallbladder. The GI tract is a series of hollow organs joined in a long, twisting tube from the mouth to the anus. The hollow organs that make up the GI tract are the mouth, esophagus, stomach, small intestine, large intestine—which includes the rectum—and anus. Food enters the mouth and passes to the anus through the hollow organs of the GI tract. The liver, pancreas, and gallbladder are the solid organs of the digestive system. The digestive system helps the body digest food.

Important Points
Digestion is important for breaking down food into nutrients, which the body uses for energy, growth, and cell repair

Digestion works by moving food through the gastrointestinal (GI) tract

Digestion begins in the mouth with chewing and ends in the small intestine

As food passes through the GI tract, it mixes with digestive juices, causing large molecules of food to break down into smaller molecules. The body then absorbs these smaller molecules through the walls of the small intestine into the bloodstream, which delivers them to the rest of the body

Waste products of digestion pass through the large intestine and out of the body as a solid matter called stool

Digestive juices contain enzymes that break food down into different nutrients

The small intestine absorbs most digested food molecules, as well as water and minerals, and passes them on to other parts of the body for storage or further chemical change. Hormone and nerve regulators control the digestive process.

How can I keep my digestive system healthy?

Drink water often: Water helps the food you eat flow more easily through your digestive system. Low amounts of water in your body (dehydration) is a common cause of constipation.

Include fiber in your diet: Fiber is beneficial to digestion and helps your body have regular bowel movements. Be sure to incorporate both soluble and insoluble fiber into your diet.

Eat a balanced diet: Be sure to eat several servings of fruit and vegetables every day. Choose whole grains over processed grains and try to avoid processed foods in general. Choose poultry and fish more often than red meat and limit all deli (processed) meats. Limit the amount of sugar you consume.

Eat foods with probiotics or take probiotic supplements: Probiotics are good bacteria that help fight off the bad bacteria in your gut. They also make healthy substances that nourish your gut. It can be especially helpful to consume probiotics after you have taken an antibiotic because antibiotics often kill both bad and good bacteria in your gut.

Eat mindfully and chew your food: Eating slowly gives your body time to digest your food properly. It also allows your body to send you cues that it is full. It is important to chew your food thoroughly because it helps to ensure your body has enough saliva (spit) for digestion.

Chewing your food fully also makes it easier for your digestive system to absorb the nutrients in the food.

Exercise: Physical activity and gravity help move food through your digestive system. Taking a walk, for example, after you eat a meal can help your body digest the food more easily.

Avoid alcohol and smoking: Alcohol can increase the amount of acid in your stomach and can cause heartburn, acid reflux and stomach ulcers. Smoking almost doubles your risk of having acid reflux.

Research has shown that people who have digestive issues that quit smoking have improved symptoms.

Manage your stress: Stress is associated with digestive issues such as constipation, diarrhea and IBS.

Digestive System Physiology

Ingestion
The first function of the digestive system is ingestion, or the intake of food. The mouth is responsible for this function, as it is the orifice through which all food enters the body. The mouth and stomach are also responsible for the storage of food as it is waiting to be digested. This storage capacity allows the body to eat only a few times each day and to ingest more food than it can process at one time.

Secretion
In the course of a day, the digestive system secretes around 7 liters of fluids. These fluids include saliva, mucus, hydrochloric acid, enzymes, and bile. Saliva moistens dry food and contains salivary amylase, a digestive enzyme that begins the digestion of carbohydrates. Mucus serves as a protective barrier and lubricant inside of the GI tract. Hydrochloric acid helps to digest food chemically and protects the body by killing bacteria present in our food. Enzymes are like tiny biochemical machines that disassemble large macromolecules like proteins, carbohydrates, and lipids into their smaller components. Finally, bile is used to emulsify large masses of lipids into tiny globules for easy digestion.

Mixing and Movement
The digestive system uses 3 main processes to move and mix food:
Swallowing. Swallowing is the process of using smooth and skeletal muscles in the mouth, tongue, and pharynx to push food out of the mouth, through the pharynx, and into the esophagus.
Peristalsis. Peristalsis is a muscular wave that travels the length of the GI tract, moving partially digested food a short distance down the tract. It takes many waves of peristalsis for food to travel from the esophagus, through the stomach and intestines, and reach the end of the GI tract.
Segmentation. Segmentation occurs only in the small intestine as short segments of intestine contract like hands squeezing a toothpaste tube. Segmentation helps to increase the absorption of nutrients by mixing food and increasing its contact with the walls of the intestine.

Digestion
Digestion is the process of turning large pieces of food into its component chemicals. Mechanical digestion is the physical breakdown of large pieces of food into smaller pieces. This mode of digestion begins with the chewing of food by the teeth and is continued through the muscular mixing of food by the stomach and intestines. Bile produced by the liver is also used to mechanically break fats into smaller globules. While food is being mechanically digested it is also being chemically digested as larger and more complex molecules are being broken down into smaller molecules that are easier to absorb. Chemical digestion begins in the mouth with salivary amylase in saliva splitting complex carbohydrates into simple carbohydrates. The enzymes and acid in the stomach continue chemical digestion, but the bulk of chemical digestion takes place in the small intestine thanks to the action of the pancreas. The pancreas secretes an incredibly strong digestive cocktail known as pancreatic juice, which is capable of digesting lipids, carbohydrates, proteins and nucleic acids. By the time food has left the duodenum, it has been reduced to its chemical building blocks---fatty acids, amino acids, monosaccharides, and nucleotides.

Absorption
Once food has been reduced to its building blocks, it is ready for the body to absorb. Absorption begins in the stomach with simple molecules like water and alcohol being absorbed directly into the bloodstream. Most absorption takes place in the walls of the small intestine, which are densely folded to maximize the surface area in contact with digested food. Small blood and lymphatic vessels in the intestinal wall pick up the molecules and carry them to the rest of the body. The large intestine is also involved in the absorption of water and vitamins B and K before feces leave the body.

Excretion
The final function of the digestive system is the excretion of waste in a process known as defecation. Defecation removes indigestible substances from the body so that they do not accumulate inside the gut. The timing of defecation is controlled voluntarily by the conscious part of the brain, but must be accomplished on a regular basis to prevent a backup of indigestible materials.

What organs make up the digestive system?

Mouth
The mouth is the beginning of the digestive tract. In fact, digestion starts before you even take a bite. Your salivary glands get active as you see and smell that pasta dish or warm bread. After you start eating, you chew your food into pieces that are more easily digested. Your saliva mixes with the food to begin to break it down into a form your body can absorb and use. When you swallow, your tongue passes the food into your throat and into your esophagus.

Esophagus
Located in your throat near your trachea (windpipe), the esophagus receives food from your mouth when you swallow. The epiglottis is a small flap that folds over your windpipe as you swallow to prevent you from choking (when food goes into your windpipe). A series of muscular contractions within the esophagus called peristalsis delivers food to your stomach.

Stomach
The stomach is a hollow organ, or "container," that holds food while it is being mixed with stomach enzymes. These enzymes continue the process of breaking down food into a usable form. Cells in the lining of your stomach secrete a strong acid and powerful enzymes that are responsible for the breakdown process. When the contents of the stomach are processed enough, they’re released into the small intestine.

Small intestine
Made up of three segments — the duodenum, jejunum, and ileum — the small intestine is a 22-foot long muscular tube that breaks down food using enzymes released by the pancreas and bile from the liver. Peristalsis also works in this organ, moving food through and mixing it with digestive juices from the pancreas and liver.

Pancreas
The pancreas secretes digestive enzymes into the duodenum that break down protein, fats and carbohydrates. The pancreas also makes insulin, passing it directly into the bloodstream. Insulin is the chief hormone in your body for metabolizing sugar.

Liver
The liver has many functions, but its main job within the digestive system is to process the nutrients absorbed from the small intestine. Bile from the liver secreted into the small intestine also plays an important role in digesting fat and some vitamins.

Gallbladder
The gallbladder stores and concentrates bile from the liver, and then releases it into the duodenum in the small intestine to help absorb and digest fats.

Colon
The colon is responsible for processing waste so that emptying your bowels is easy and convenient. It’s a 6-foot long muscular tube that connects the small intestine to the rectum.

Rectum
The rectum is a straight, 8-inch chamber that connects the colon to the anus. The rectum's job is to receive stool from the colon, let you know that there is stool to be evacuated (pooped out) and to hold the stool until evacuation happens. When anything (gas or stool) comes into the rectum, sensors send a message to the brain. The brain then decides if the rectal contents can be released or not.

Anus
The anus is the last part of the digestive tract. It is a 2-inch long canal consisting of the pelvic floor muscles and the two anal sphincters (internal and external). The lining of the upper anus is able to detect rectal contents. It lets you know whether the contents are liquid, gas or solid.

What Are the Benefits of Good Digestive Health?

Efficient Nutrient Absorption
A digestive system that functions properly is able to absorb nutrients from your diet. Your body needs vitamins and minerals from food such as fruits, vegetables, whole grains, and protein to run efficiently. You also need good nutrition absorption for energy, healing and maintenance, hormone, brain, and cellular function, as well as good bone health.

Prevention of Gastrointestinal Issues
Poor digestive health can lead to a range of gastrointestinal (GI) disorders, including upper gastrointestinal issues such as indigestion, gas and bloating, gallstones, peptic ulcers, and GERD, as well as lower GI disorders like constipation, hemorrhoids, irritable bowel syndrome, and colon polyps. By improving your digestive health through lifestyle changes, you can reduce your risk of developing such problems.

Better Immune System Function
The digestive system and gut are closely linked. The gut microbiome, which is the collection of bacteria and other microorganisms that live in the digestive system, plays a critical role in immune system function. The gut microbiome helps regulate the immune system, and a healthy microbiome can help promote a balanced and robust immune response and prevent harmful bacteria from entering the body.

Better Mental Health
Another connection is between your gut and your brain – through the gut-brain axis, the communication pathway between the gut and the central nervous system. An imbalance in the gut or the experience of having GI issues can affect mental health. Individuals with gastrointestinal issues usually have higher levels of stress, anxiety, and withdrawal from socializing.

Better Weight Management
A healthy digestive system makes it easier to get to and maintain a healthy weight. When the body absorbs the nutrients it needs, it is less susceptible to cravings and binge eating. In addition, a good digestive system promotes regular bowel movements, preventing complications that may arise from the buildup of waste in the body.

Our Factory

Meiwo science software products cover classroom teaching, experimental teaching, and life science museum display system. Specifically, there are multiple sets of medical software such as comprehensive teaching platform for human anatomy, digital human anatomy system, 3D specimen database query system, human body nine interactive display system, VR human anatomy, and assembly of human organs, etc.
Meiwo adopts the construction concept of "intelligent life science museum", which integrates the intelligent management of the exhibition hall, the professional display of specimens and the scientific display of medical knowledge.The exhibition hall will provide a high-tech, intelligent and experiential interactive learning platform with the combination of human experimental teaching, popular science education, clinical application, humanistic care, cultural inheritance, medicine and art, etc.

plastinated animal specimen

FAQ

Q: Can your digestive system feel when you're stressed?

A: That includes digestion. The emptying of the stomach is delayed, which can lead to a stomachache, indigestion, heartburn and nausea.” As the stomach is slowing down, stress causes increased motor function in the large intestine. So at the same time that you're stressed, you might experience bowel urgency or diarrhea.

Q: What are two diseases associated with the digestive system?

A: Common digestive disorders include gastroesophageal reflux disease, cancer, irritable bowel syndrome, lactose intolerance and hiatal hernia. The most common symptoms of digestive disorders include bleeding, bloating, constipation, diarrhea, heartburn, pain, nausea and vomiting.

Q: How do emotions affect your digestive system?

A: Emotion is the experience of energy moving through the body and these energy currents can increase or decrease the movements of the gut and the contents within it; making the digestive system susceptible to bloating and other types of pain.

Q: What would happen if the digestive system stopped working?

A: Weight loss, malnutrition and dehydration
Chronic nausea and vomiting, or simply the loss of appetite, can lead to weight loss and malnutrition. If you vomit frequently, it can also lead to dehydration and electrolyte deficiencies. You may need to recover in the hospital with nutritional therapy and fluid replacement.

Q: What are 3 important things about the digestive system?

A: The digestive system serves the role of taking in nutrients, eliminating waste, and absorbing and using the nutrients we take in. The digestive system includes all the parts of your body that are involved when you eat or drink.

Q: How do you know when your digestive system is shutting down?

A: Abdominal bloating. Abdominal pain. A feeling of fullness after eating just a few bites. Vomiting undigested food eaten a few hours earlier.

Q: How do you know if your digestive system is bad?

A: Signs of poor gut health
Autoimmune problems, such as thyroid issues, rheumatoid arthritis and type 1 diabetes.
Digestive issues, such as irritable bowel syndrome, constipation, diarrhea, heartburn or bloating.
Sleep issues.
Skin rashes and allergies.
Sugar cravings.
Unexplained fatigue or sluggishness.

Q: What are four signs of poor functioning of the digestive system?

A: Frequent discomfort, gas, bloating, constipation, diarrhea, and heartburn could be signs that your gut is having a hard time processing food and eliminating waste. You feel tired more often than not. People with chronic fatigue may have imbalances in the gut.

Q: How does the digestive system feel when you are stressed?

A: The emptying of the stomach is delayed, which can lead to a stomachache, indigestion, heartburn and nausea.” As the stomach is slowing down, stress causes increased motor function in the large intestine. So at the same time that you're stressed, you might experience bowel urgency or diarrhea.

Q: How do I check my digestive system?

A: Standard imaging tests for gastric conditions include upper gastrointestinal series (UGI), ultrasounds, MRIs, CT scans and X-rays. For an even clearer picture of the gastrointestinal tract, a barium swallow or barium enema may be used in conjunction with an X-ray.

Q: How do I get my digestive system back to normal?

A: Gut health and diet
Eat a high fibre diet. Fibre is important for our gut health for many reasons. ...
Eat a diverse range of food. ...
Limit ultra-processed foods. ...
Drink water. ...
Eat foods rich in polyphenols. ...
Eat slowly. ...
Eat fermented foods.

Q: How can I test my digestive system at home?

A: The Corn Test: An At-Home Experiment
Step 1: Swallow 8-15 unpopped corn kernels (no chewing). Log the date and time.
Step 2: Check the toilet for kernels each time you poop.
Step 3: Once you spot them, note the date and time.
Step 4: Calculate the time passed between Step 1 and 3. That's your transit time.

Q: What are the symptoms of a bad digestive system?

We're well-known as one of the leading digestive system manufacturers and suppliers in China, specialized in providing various animal & human body specimens. Welcome to buy high quality digestive system for sale here from our factory. Duck Cadaver Plastination specimens, plastinated animal organ, Deep Muscles Vascular And Nerves Of Whole Body Soft Silicone Anatomy Model