liver
Liver
active diffusion
Vitamin D is essential for enhancing calcium absorption in the GI tract. It helps regulate calcium levels in the body and promotes the absorption of calcium from the intestines into the bloodstream. Additionally, factors like adequate stomach acid levels and a diet rich in calcium-containing foods can also support calcium absorption.
Liquid medications usually have the fastest absorption from the GI tract compared to tablets or capsules. This is because liquids are already in a form that is easily and quickly absorbed by the body.
Because human body does not have enzymes to breakdown the iron compound, for it to be absorbed into gastrointestinal tract. The animals do have those enzymes in their GI tract hence they obtain sufficient iron from the plants.
Are you referring to Motility which is the moving of the Chyme (eaten food that is being digested and absorbed) as it travels the Gastro-Intestinal Tract (GI Tract) from the mouth to the anus?
No, a drug that is 100 percent absorbed from the gastrointestinal (GI) tract would not necessarily have 100 percent bioavailability. Bioavailability is affected by factors such as first-pass metabolism in the liver, which can reduce the amount of the drug that reaches the systemic circulation unchanged. Thus, even if a drug is fully absorbed, its bioavailability may be less than 100 percent.
These would be water soluble vitamins, such as the B-vitamins and Vitamin C.
When alcohol and barbiturates are ingested, they are absorbed from the GI tract and transported first to the liver before circulating to the rest of the body. In the liver, these substances are metabolized before being distributed through the bloodstream to the brain and other organs. This process can affect central nervous system function and lead to intoxication or sedation.
Contraction of GI tract are: peristalsis and segmentation.
The stomach has the thickest walls and the strongest muscle in all the GI tract organs. : )