Food is absorbed across the lining of the small intestine both by osmosis and by active transport. The surface area of the small intestine is increased by the presence of villi, microscopic finger-like projections into the lumen of the intestine.
Certain parasites, such as tapeworms, produce chemicals that cause the intestine to "work in reverse" causing the body to pump vital nutrients back into the intestine to feed the worm.
small intestine helps absorb nutrients
it is adapted to absorbing nutrients due to the villi present in the small intestine.
The role of the villi in the small intestine is to absorb nutrients.
The nutrients absorb
The part of the digestive system that absorbs nutrients is the small intestines. They absorb essential nutrients from food into the blood stream.
the tiny structures within the small intestine that absorb nutrients are called Villi
Absorb nutrients.
Absorb nutrients.
Absorb nutrients.
Absorb nutrients.
The Small Intestine.Villi lines the wall of the small intestine.IntestineSmall IntestineThe small intestine.
The two main jobs of the small intestine are digestion and absorption. It digests food using enzymes and other substances, breaking down nutrients into smaller molecules. These nutrients are then absorbed through the walls of the small intestine and into the bloodstream to be used by the body.