HEYA BRAINICS ❣️❣️
❤️❤️50 POINTS ❤️❤️
ALL WELL?☺️☺️
QUESTION : DESCRIBE THE PROCESS OF DIGESTION IN HUMANS FROM MOUTH TO SMALL INTESTINE WITH THE HELP OF A LABELLED DIAGRAM.❤️☺️☺️
NOTE : ❌❌NO COPY PASTE ❌❌NO SPAM ❌❌
Answers
hlo mate here is your answer:-
Our digestive system provides us with one of the essential functions of life, nutrition, which helps to provide us with energy and provides our body with building blocks to create new body cells from.
The digestive system is essentially a tube which extends from the mouth to the rectum.
Components of the digestive system
Food passes through the digestive system in the following order:
Mouth
Esophagus
Stomach
The small intestine
Colon (large intestine)
Rectum
Through this process a number of enzymes act on the food we eat (inc liver, pancreas, gall bladder).
The mouth and esophagus
In the mouth, saliva acts to start to break down carbohydrates thanks to an enzyme called amylase. The esophagus is a tube, controlled by muscles and autonomic nerves, that helps food to travel from the mouth to the stomach.
The stomach
The stomach coats the food with a mixture of acid and digestive enzymes to help break the food down further. A layer of mucous protects the stomach lining from being damaged by the acid.
The bottom of the stomach is able to contract, which helps to speed up the process. When the food is broken down sufficiently the stomach releases its contents into the duodenum.
Diabetes and the stomach
The small intestine
The small intestine is categorised in three parts; the duodenum being the first, the jejunum second and the ileum the final part.
When food enters the duodenum, the pancreas releases enzymes to help break down fat, protein and carbohydrate. The gall bladder releases bile, which has been produced by the liver, to help further break fats down into a form that can be absorbed by the intestines.
The small intestine is lined with finger-like projections, called villi, which provide a very large surface area facilitating the absorption of nutrients, including carbohydrates, proteins and fats, into the bloodstream.
The small intestine also plays a key role in regulating blood glucose levels. The small intestine contains a number of receptive cells which detect the presence of macronutrients and secrete hormones which instructs the pancreas on how much insulin and glucagon to release.
• The process of digestion start from the mouth where first the ingestion of food takes place.
• The salivary gland in our mouth at on this food and after that due to the action of enzyme the complex sugar in food converts into simple sugar.
• After this food reaches to the stomach with a pipe which is known as food pipe or oesophagus.
• In stomach there are very large amount of gastric gland present which contains HCL mucus and pepsin. food which raises to the stomach comes slowly inside the stomach due to the sphincter muscle.
• The gastric gland secretes the gastric juice which contain the above three things which are HCL mucus and pepsin. Mucus makes a lining on stomach which prevents it from the corrosion of HCL. HCL make the food acidic so that protein can be digested by the pepsin enzyme. After the making of food acidic pepsin act on the acidic food and convert the protein into peptones.
• After this food slowly come down to earth the small intestine where the final digestion of food takes place in the beginning of small intestine in the ileum the the pancreas secrete pancreatic juice which contain three enzymes
° amylase
converts the complex sugar
into glucose
° trypsin
converts proteins into amino
acids
° lipase
convert fats into fatty acid
• The food for the reaches into small intestine where there are many microvillus present it which absorbs the food as these release are richly supplied with blood capillaries which observe the digested food.
• The now the undigested food reaches the large intestine where water and minerals are further observed and the remaining waste is excreted out.