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Accessory Organs

Enzymes

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Accessory Organs

Enzymes

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Sircus, M.D.. "human digestive system." Encyclopedia Britannica Online. Encyclopedia Britannica, 26 Dec. 2013. Web. 10 Apr. 2014.

N.a. The digestive system. N.d. Anatomical and Medical, Niddk Image Library. Web. 18 Apr. 2014.

N,a. Coffee And Pastry. N.d. Free Vectors, Vectors for All. Web. 13 Apr. 2014.

Wallace, Michael . "National Digestive Diseases Information Clearinghouse (NDDIC)." - National Digestive Diseases Information Clearinghouse. Your Digestive System and How It Works. National Institutes of Health., n.d. Web. 13 Apr. 2014.

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Approx. 90cm long

The first 30cm is called the duodenum the second is the jejunum and the third the ileum

Releases bicarbonate ions to cancel out the acidity of the HCl

Does the majority of the chemical digestion,

The majority of nutriants get obsorbed here

Bile produced by the liver and stored in the gall bladder starts its breakdown of lipids (fat)

Receives pancreatic juice, which is made up of water, NaHCO3, pancreatic amylase, lipase, trypsin  and pancreatic nuclease, from the pancreas to aid the digestion of starch, lipids, proteins and nucleic acids

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Teeth mechanically (physically) break down food

Salivary glands make saliva, made up of water and salivary amylase, that helps lubricate the food so it can go down the esophagus and starts the chemical breakdown of starch

The tongue then helps to push the food into the esophagus

The pharynx works as the passageway of both air and food into the esophagus

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Teeth mechanically (physically) break down food.

Salivary glands make saliva, made up of water and salivary amylase, that helps lubricate the food so it can go down the esophagus and starts the chemical breakdown of starch.

The tongue then helps to push the food into the esophagus.

The pharynx works as the passageway of both air and food into the esophagus

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The opening from the esophagus into the stomach

Allows food to pass through when it relaxes and then stops it from going back up when it contracts

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End of the large intestine

Stores waste, feces, then expels it out of the body through the anus with the help of the anal sphincter muscles

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Produces E. coli which synthesizes vitamins B and K

Finishes the breakdown of any undigested material

Takes water out of the waste which is then stored in the colon

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The opening of the duodenum from the stomach

Regulates the amount of digested food, chyme, that enters the duodenum at a time by contracting and relaxing

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Stores food

Contains Parietal and Chief cells which produce Hydrochloric acid (HCl) and pepsinogen

Lined with mucus to protect the stomach from HCl

Changes pepsinogen into pepsin to aid in the breakdown of protein

Contains gastric juice made by the gastric glands to help digest food

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The opening from the esophagus into the stomach.

Allows food to pass through when it relaxes and stops it from going back up when it contracts.

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Transfers food to the stomach using peristalsis (rhythmic muscle contractions)

produces mucus to help moisten the food

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Teeth mechanically (physically) break down food.

Salivary glands make saliva, made up of water and salivary amylase, that helps lubricate the food so it can go down the esophagus and starts the chemical breakdown of starch.

The tongue then helps to push the food into the esophagus.

The pharynx works as the passageway of both air and food into the esophagus