Digestion continued...

The liver is responsible for the production of bile. Bile is a chemical made from dead red blood cells. Bile breaks down the fats that we eat.
After bile is produced it is stored in the gall bladder, it is released in the presence of fats

in order to break them down.

THIS IS ONLY ONE OF MANY FUNCTIONS THAT THE LIVER IS RESPONSIBLE FOR SUCH AS THE POISON CONTROL OF THE BODY

The pancreas breaks down carbohydrates and further breaks down proteins. The peptidases that are made by the pancreas are called

Trypsin, Chymotrypsin, and carboxypeptidase.these are then changes to their inactive form which are trypsinogen,chimotrypsin, and procarboxypeptidase. This change occurs in order to protect the pancreas from getting digested. When needed tripsinogen is changed back into tripsen by the small intestine then tripsen activates the other enzymes to change.

The small intestine is the major organ of digestion and absorption.

The small intestine is over 6m and has a alot of surface area for absorption due to the thousands of villi against its lining.

The small intestine is made of 3 parts the Duodenum where most digestion occurs.

Jejunam and Ileum where absorption of nutrients and water occur.

The nutrients from the food are absorbed through the capillary walls which are only one cell thick

What ever the body cannot put to use gets sent to the large intestine. Products such as cellulose which or body cannot digest is sent here. The large intestine has a bunch of good bacteria

that prduce vitimans and help digest cellulose.

The liver also re-absorbs water back into the blood stream so we dont dehydrate.

The last section of the large intestine is the rectum which eliminates the pheces and undigested materials from the body

and lastly you end up with...