The Digestive SystemThe Digestive System

By: Luis A. RenteriaBy: Luis A. Renteria

MouthMouth

The Mouth is an opening in your The Mouth is an opening in your face. Like a hole .The mouth is face. Like a hole .The mouth is important for breathing, eating and important for breathing, eating and talking. The mouth consists of a tongue talking. The mouth consists of a tongue and teeth. The mouth has 12 teeth, 8 and teeth. The mouth has 12 teeth, 8 mini molars and 12 molars. 4 of your mini molars and 12 molars. 4 of your molars are your wisdom teeth which are molars are your wisdom teeth which are at the back of your mouth , you usually at the back of your mouth , you usually get them in your late teens.get them in your late teens.

EsophagusEsophagus

The Esophagus is a muscular The Esophagus is a muscular passage connecting the mouth to the passage connecting the mouth to the stomach. In other words, the throat.stomach. In other words, the throat.

StomachStomach

The stomach is a saclike enlargement in The stomach is a saclike enlargement in humans and some animals, forming an humans and some animals, forming an organ for storing and digesting food. organ for storing and digesting food.

Small IntestineSmall Intestine

The small intestine is a long tube (20ft to The small intestine is a long tube (20ft to 25 ft) following the stomach and followed 25 ft) following the stomach and followed by the large intestine, and is where much by the large intestine, and is where much of the digestion of food takes place.of the digestion of food takes place.

Large IntestineLarge Intestine

The Large Intestine consists of the cecum and colon and continues after the small intestine. Its main function is to absorb water from indigestible food. Then transmits the useless waste out of the body.

Liver Liver

The liver is a dark-reddish colored organ. Its function is The liver is a dark-reddish colored organ. Its function is to regulate most chemical levels in the blood and gets rid to regulate most chemical levels in the blood and gets rid of a product called Bile, which helps to break down fats, of a product called Bile, which helps to break down fats, preparing them for further digestion.preparing them for further digestion.

AppendixAppendix

The Vermiform Appendix is a narrow, The Vermiform Appendix is a narrow, dead-end tube about three-to-four inches dead-end tube about three-to-four inches long that hangs off of the Cecum (Large long that hangs off of the Cecum (Large Intestine). There is no Known function of Intestine). There is no Known function of the appendix. Scientist think that its just the appendix. Scientist think that its just part of the evolution of man.part of the evolution of man.

PancreasPancreas

The main function of the pancreas is for The main function of the pancreas is for it to produce a hormone called insulin. it to produce a hormone called insulin. Insulin is important because it helps to Insulin is important because it helps to regulate our blood sugar. Another regulate our blood sugar. Another function is to make enzymes like insulin function is to make enzymes like insulin for the body. These enzymes are for the body. These enzymes are necessary for the digestion of food.necessary for the digestion of food.

Gall bladderGall bladder

The gallbladder’s function is to store the The gallbladder’s function is to store the bile that is produced by the liver. A human bile that is produced by the liver. A human can survive without a gallbladder.can survive without a gallbladder.(picture bottom right)(picture bottom right)

EnzymesEnzymes

There are about 2,700 enzymes in the There are about 2,700 enzymes in the human body. Enzymes are proteins that human body. Enzymes are proteins that speeds up a chemical reaction in a speeds up a chemical reaction in a living organism. An enzyme acts as living organism. An enzyme acts as catalyst (A substance that speeds up a catalyst (A substance that speeds up a chemical reaction) for curtain chemical chemical reaction) for curtain chemical reactions, changing a specific set of reactions, changing a specific set of reactants into specific products. Without reactants into specific products. Without enzymes life would not exist.enzymes life would not exist.

Bile / Bile DuctBile / Bile Duct

A bile duct is a small tube that transports A bile duct is a small tube that transports bile. There are many ducts (small tubes) bile. There are many ducts (small tubes) that carry the bile from the liver to the that carry the bile from the liver to the intestine. Bile is needed for food digestion.intestine. Bile is needed for food digestion.

MucusMucus

Mucus is that green stuff inside your nose. Mucus is that green stuff inside your nose. It's also inside your throat-it's there to It's also inside your throat-it's there to (hopefully) stop viruses, bacteria and (hopefully) stop viruses, bacteria and anything else that may start a disease.anything else that may start a disease.

Chemical DigestionChemical Digestion

The Chemical Digestion is the digestion The Chemical Digestion is the digestion process in which enzymes are used to process in which enzymes are used to break foods into smaller chemical building break foods into smaller chemical building blocks. blocks.

AbsorptionAbsorption

Absorption, the absorption of substances Absorption, the absorption of substances by a tissue. As if nutrients passed through by a tissue. As if nutrients passed through the wall of the intestine. For example if I the wall of the intestine. For example if I poured water on a rag it would absorb the poured water on a rag it would absorb the water; that is an example of what a tissue water; that is an example of what a tissue does to the nutrients.does to the nutrients.

Mechanical DigestionMechanical Digestion

Mechanical digestion is the process of Mechanical digestion is the process of breaking down food in the mouth into breaking down food in the mouth into smaller pieces that can be swallowed. smaller pieces that can be swallowed. Chewing is the initial mechanical Chewing is the initial mechanical breakdown of food, but the strong breakdown of food, but the strong muscles of the stomach also break up muscles of the stomach also break up the food. the food.

Salivary AmylaseSalivary Amylase

Salivary amylase is the enzyme in the Salivary amylase is the enzyme in the saliva. This is the enzyme that starts saliva. This is the enzyme that starts breaking down starches into sugars. More breaking down starches into sugars. More amylase is produced in the pancreas. amylase is produced in the pancreas.

VilliVilli

Villi. Tiny, finger-like projections that Villi. Tiny, finger-like projections that enable the small intestine to absorb enable the small intestine to absorb nutrients from food. nutrients from food.

Gastric JuicesGastric Juices

A fluid secreted by glands, lining the A fluid secreted by glands, lining the inside of the stomach. It contains Enzymes inside of the stomach. It contains Enzymes such as Pepsin, that helps in digestion.such as Pepsin, that helps in digestion.

DuodenumDuodenum intestine and is about 9 to 11 inches long. It intestine and is about 9 to 11 inches long. It

Duodenum is the first part of the small intestine, Duodenum is the first part of the small intestine, which receives partially digested food from the which receives partially digested food from the stomach and begins the absorption of nutrients. stomach and begins the absorption of nutrients. The duodenum is the shortest part of the small The duodenum is the shortest part of the small intestine and is roughly horseshoe shaped, with intestine and is roughly horseshoe shaped, with the open end up and to the left, and it lies the open end up and to the left, and it lies behind the liver. behind the liver.

ChymeChyme

Chyme: the viscous, semi fluid contents of Chyme: the viscous, semi fluid contents of the stomach present during digestion of the stomach present during digestion of a meal. Chyme then passes through the a meal. Chyme then passes through the pylorus into the duodenum, where pylorus into the duodenum, where further digestion occurs. further digestion occurs.

BibliographyBibliography

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http://www.news-medical.net/health/What-Does-the-Large-Intestine-Do.aspx

http://medicalcenter.osu.edu/patientcare/healthcare_services/liver_biliary_pancreatic_disease/liver_anatomy_function/Pages/index.aspx

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