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The Digestive System And The Circulatory System

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The Digestive System 1.1
The digestive system is comprised of a group of organs known as the alimentary canal, which is one continues tube that runs from the oral cavity to the anus. The second set of organs that make up the digestive system are the Accessory organs.
The digestive system has six main functions: ingestion, secretion, mixing and movement, digestion, absorption, and excretion of food (Tortora & Derrickson, 2009).
Alimentary canal
Organ Structure Function Diagram
Mouth The mouth is made up of the checks hard and soft palates, internally and externally covered with skin. The mouth is where food enters the body and the process of digestion starts via mechanical and chemical digestion. oesophagus The oesophagus is a long tube …show more content…

Salivary Glands The salivary glands surround the mouth. There are 3 sets of salivary glands. The saliva moistens the food to lubricate it as it passes through the mouth; it also begins the process of chemical digestion.
Liver The liver is accessory organ of the digestive system which is triangle in shape. The liver is located to the right of the stomach and above the small intestine. The main functions of the liver in digestion are production and secretion of bile into the small intestine.
Gallbladder The gallbladder is a pear shaped organ located just behind the liver. The gallbladder stores the bile and recycles any excess bile from the small intestine.
Pancreas The pancreas is a fairly large gland which is about 15cm in length. The head is connected to the duodenum. The pancreas secretes many different digestive enzymes into the small intestine via the duodenum to aid in the completion of chemical digestion.
(Tortora & Derrickson, 2009)
Diagrams from: http://www.innerbody.com/image/digeov.html

Enzyme Function of the liver and pancreas 1.2
The chyme arrives in the duodenum and the pancreas releases pancreatic juices packed with enzymes that break down fats, carbohydrates, and proteins these are: Pancreatic lipase, amylase, and protease. Bile is then realised by the gall bladder - this bile is produced by the liver, with the gall bladder being the bile duct - this helps to breakdown

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