<P> After some time ( typically 1 -- 2 hours in humans , 4 -- 6 hours in dogs , 3 -- 4 hours in house cats ) , the resulting thick liquid is called chyme . When the pyloric sphincter valve opens , chyme enters the duodenum where it mixes with digestive enzymes from the pancreas and bile juice from the liver and then passes through the small intestine , in which digestion continues . When the chyme is fully digested , it is absorbed into the blood . 95 % of absorption of nutrients occurs in the small intestine . Water and minerals are reabsorbed back into the blood in the colon ( large intestine ) where the pH is slightly acidic about 5.6 ~ 6.9 . Some vitamins , such as biotin and vitamin K ( K MK7 ) produced by bacteria in the colon are also absorbed into the blood in the colon . Waste material is eliminated from the rectum during defecation . </P>
<P> After some time ( typically 1 -- 2 hours in humans , 4 -- 6 hours in dogs , 3 -- 4 hours in house cats ) , the resulting thick liquid is called chyme . When the pyloric sphincter valve opens , chyme enters the duodenum where it mixes with digestive enzymes from the pancreas and bile juice from the liver and then passes through the small intestine , in which digestion continues . When the chyme is fully digested , it is absorbed into the blood . 95 % of absorption of nutrients occurs in the small intestine . Water and minerals are reabsorbed back into the blood in the colon ( large intestine ) where the pH is slightly acidic about 5.6 ~ 6.9 . Some vitamins , such as biotin and vitamin K ( K MK7 ) produced by bacteria in the colon are also absorbed into the blood in the colon . Waste material is eliminated from the rectum during defecation . </P>
where does absorption take place in digestive system
where does absorption take place in digestive system
in the small intestine
in the small intestine