Oxygen enters the body by travelling into the lungs, it then diffuses through the alveoli cell wall into the body's biggest artery, the aorta.
through cells in the villi of the small intestine
It is absorbed into the blood through the vili in the small intestine.
It is absorbed into the blood through the vili in the small intestine.
Yes, It does. When the food reaches the point that it is in the bloodstream, It goes through the large intestine.
some one help me
Oxygen enters the blood stream through the air sacs in you lungs.
The small intestine
In air breathing animals, oxygen enters the blood stream through the alveoli, tiny sacs in the lungs. In water breathing animals oxygen enters the blood stream through the gills.
Nutrients leave the gut and enter the bloodstream through the lining of the small intestine.
The nutrients of food are absorbed at the intestine from where they reach the organs and tissues through the circulatory system.
Like most nutrients, glucose sugar is absorbed into the blood stream through the walls of the small intestine from the food one eats.
in the intestines and in the liver, the latter being stored glucoses.