A study of the digestive systems

During swallowing, food passes from A study of the digestive systems mouth through the pharynx into the esophagus. It is then pushed to the rectum which is the lastpart of the large intestine, then out the anus and into yourtoilet. The resulting alkaline fluid mix neutralises the gastric acid which would damage the lining of the intestine.

So your food can make its way to the tummy and then deposit it later. The diaphragm also attaches to, and anchors the liver at its bare area.

The mucus component lubricates the walls of the intestine. After the fat is absorbed, the bile is also absorbed and transported back to the liver for reuse. A number of problems including malnutrition and anemia can arise from malabsorptionthe abnormal absorption of nutrients in the GI tract.

Amylase starts to work on the starch in carbohydratesbreaking it down into the simple sugars of maltose and dextrose that can be further broken down in the small intestine. The precursor zymogensare inactive variants of the enzymes; which avoids the onset of pancreatitis caused by autodegradation.

Human Digestive System

The first part of the food to be broken down is the starch of carbohydrates by the enzyme amylase in the saliva. Anatomy is the study of the structure of the human body.

Lipase digests the triglycerides which are broken down into two fatty acids and a monoglyceride. Mastication of the food with the help of saliva and mucus results in the formation of a soft bolus which can then be swallowed to make its way down the upper gastrointestinal tract to the stomach.

The pharynx joins the esophagus at the esophageal inlet which is behind the cricoid cartilage. Gastric acid informally gastric juiceproduced in the stomach plays a vital role in the digestive process, and mainly contains hydrochloric acid and sodium chloride.

Chemical digestion uses different fluids and chemicals in your bodyto break down the food further, such as pepsin and hydrochloricacid. The olfactory receptors are located on cell surfaces in the nose which bind to chemicals enabling the detection of smells.

The organs known as the accessory digestive glands are the livergall bladder and pancreas. It helps us digest the food that we eat. This also contains villi and vitamin B12 ; bile acids and any residue nutrients are absorbed here.

Lacks striations, thicker in middle and tapers at the ends, associated with involuntary muscle movements eg intestines.

The epiglottis functions to guard the entrance of the glottisthe opening between the vocal folds. The suspensory muscle attaches the ascending duodenum to the diaphragm. Gastric lipase secreted by the chief cells in the fundic glands in the gastric mucosa of the stomach, is an acidic lipase, in contrast with the alkaline pancreatic lipase.

What is the Digestive System?

Some vitamins, such as biotin and vitamin K produced by bacteria in the gut flora of the colon are also absorbed. Taste messages are sent via these cranial nerves to the brain. Muscles cannot push, they are only able to pull. There is some dissent among medical professionals about the total number of muscles in the body.

At this point, the plant cells have become much weaker than when they were in the stomach and are all flowing independently.

Function of the Digestive System

The pharynx is innervated by the pharyngeal plexus of the vagus nerve. Its digestive functions are largely involved with the breaking down of carbohydrates.

In the duodenum, pancreatic lipase is secreted together with a co-enzymecolipase to further digest the fat content of the chyme. In the blood stream, the cellulose stays intact while scraping off unwanted cholesterol as it travels.Discover how the human digestive system works - one of the most important systems in the human body.

Learn what each part does, and then see how. The function of the digestive system is digestion and absorption. Digestion is the breakdown of food into small molecules, which are then absorbed into the body.

The digestive system is divided into two major parts: The digestive tract (alimentary canal) is a continuous tube with two openings: the. In the human digestive system, large organic masses are broken down into smaller particles that the body can use as fuel.

This is a complex process. The breakdown of the nutrients requires the coordination of several enzymes secreted from specialized cells within the mouth, stomach, intestines, and. Study Guide to the Systems of the Body; Study Guide to the Systems of the Body Aug 31, It is also very important for the the removal of wastes and poisons within the body via the digestive and urinary systems.

Circulatory System: Click on this link and learn all about the circulatory system.

Human digestive system

Includes information on how it works, its. !1 Digestive System Case Study MODULE ANATOMY & PHYSIOLOGY CASE STUDY #7 Isabel’s Case: The Burn in My Chest Isabel is a young Latina woman, age 24, who loves to cook. Study of the digestive system Gastroenterology is the branch of medicine focused on studying and treating the digestive system disorders.

Physicians practicing this specialty are called.

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A study of the digestive systems
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