It stimulates flowing of bile.It is produced by deodenum.
The duodenum which is part of the small intestine.
The liver is situated in the right higher abdominal area, directly below and behind the lowest ribs. In the liver you find the gallbladder and bile duct, which may be obstructed causing intense pain. Below the liver there is a kidney in which ducts you can get kidneystones which is also painful. Below and in front of that youll find bowels, deodenum, colon ascendens and transversus. You have the appendix on the lower right side of the abdominal cavity.
Your question so limited. Because Science is used in all the things. Well I have to say only about eating.. First why do you feel hungry?.... What is the cause of it?....... It will all start with your nose! Your brain records every olfactory receptions through out your life. When you first taste your food which you would liked it more, the brain will store that smell as a great food. Then every time you come across the smell your brain will urge you to eat, but when you are fully complete and there is no place in your stomach, the brain will create a false hunger only because to taste that food. OK!... Let us make this simple. First when your stomach is empty and in a need of food it will secrete the gastric juices or enzymes. Then some sound will come out of your stomach. Do you know how the sound comes? It is because there is nothing in that area to digest so these gastric juices should digest some thing before the mucus is fully used up so it starts to digest the air present in it, but air cant be digested, so the gastric juices displace the air to some other place failing the attempt to digest it. Now only the sound like that will come out. Then you feel very hungry at a time but after a second you Don's. This is because the gastric juices escape out of the deodenum to the small intestine or you will have diluted it so those concentrated acid will cot be able to digest anything, so our body assumes that the food has been ingested food therefore you may not be able to feel the hunger. There are more than this which after research will say it to you. And please know that I am a normal 10th grade student and i have listed these things by studying some biology and a lot of logic. Please please forgive me if i have provided a wrong thesis!...............
Your question so limited. Because Science is used in all the things. Well I have to say only about eating.. First why do you feel hungry?.... What is the cause of it?....... It will all start with your nose! Your brain records every olfactory receptions through out your life. When you first taste your food which you would liked it more, the brain will store that smell as a great food. Then every time you come across the smell your brain will urge you to eat, but when you are fully complete and there is no place in your stomach, the brain will create a false hunger only because to taste that food. OK!... Let us make this simple. First when your stomach is empty and in a need of food it will secrete the gastric juices or enzymes. Then some sound will come out of your stomach. Do you know how the sound comes? It is because there is nothing in that area to digest so these gastric juices should digest some thing before the mucus is fully used up so it starts to digest the air present in it, but air cant be digested, so the gastric juices displace the air to some other place failing the attempt to digest it. Now only the sound like that will come out. Then you feel very hungry at a time but after a second you Don's. This is because the gastric juices escape out of the deodenum to the small intestine or you will have diluted it so those concentrated acid will cot be able to digest anything, so our body assumes that the food has been ingested food therefore you may not be able to feel the hunger. There are more than this which after research will say it to you. And please know that I am a normal 10th grade student and i have listed these things by studying some Biology and a lot of logic. Please please forgive me if i have provided a wrong thesis!...............
If the the animal you are talking about is humans, then here's what happenned to the food: In the mouth, the teeth would be grinding the food to break it down into smaller pieces and thus increasing the surface area to volume ratio for the food. The food would then have salivary amylase to work on them. The Saliva amylase would act on the starch and change them into glucose (Simple form of sugar). Then the Mucin in saliva softens the food before your toungue rolls the food in to a ball called boli to enable easier swallowing. In the Oesophagus (Gullet), the food is pushed down through the muscular tube and when the back contracts , the front relaxes and thus causing the food to move downwards into the stomach. And important note is that no digestion takes place here. When the food has reached the stomach, Gastric Juices,(Hydrocloric acid) stop all salivary amylase acting on the food and produces Protease to start digesting the Proteins from Proteins to Polypeptides. Also, this is where most of the germs are killed before it enters asorbtion in the S.I . But before that, the food undergoes a series of tumbling in the stomach and there would be a substance called mucus to protect the walls of the stomach to prevent the stomach from being corroded. After about 4~5 hours, the food you have eaten has turned from a solid form into somewhat like a thick soup. After the food has been digested in the stomach, it would be moved through a small opening phyloric sphicter into the Small Intestine (S.I). The small intestine is filled with tiny villis, and on each villis contains a few hundreds of micro villis. This is to ensure that Surface Area to volume ratio and that Diffusion and Osmosis could occur more effectively and effieciently. The small intestine contains of three parts, Deodenum, Jejunum and Heum. These parts makes out above 6 metres of your small intestine which allows diffusion , osmosis and active transport to happen and asorb all the food. In the Intestine, Pancreas produces Pancreatic juices and Intestine produces intestinal juice to digest all the remaining proteins, starch, maltose into Amino acids and Glucose which is the simplest form for asorbtion. After this, the food is then asorbed before it is transported to you liver which produces bile to emulsify fat molecules into 3 fatty acids and 1 glycerol molecule. and the food would be Detoxify to ensure that the food would not be "Poisoned". The toxins would then be passed out as Urea or Urine. After most nutrients is asorbed, it would go to the Large intestine. In the large intestine, the water, nutrients and minerals from the food would be asorbed and brought to your liver for processing to reuse this process is also called Assimilation. After that is done, the food would be called faeces and would be stored in the rectum ( not anus) before it is passed through the anus which is also called Ejection. So in a nutshell how stuffs work, Mouth > Oesophagus > Stomach > Small Intestine > Large intestine > Rectum > Anus Ingestion > Digestion > Asorbtion > Assimilation > Ejection Igestion > Mouth & maybe Oesophagus Digestion > Stomach & Small Intestine Assimilation > Small & Large Intestine Ejection > Rectum & Anus