The liver receives the bulk of the water soluble nutrients.
Little absorption occurs in the oral cavity, esophagus, and stomach. The small and large intestines are where most absorption takes place. The blood flows from the intestines back to the liver via the portal vein.
The liver.
Liver
The liver is the first organ to receive nutrients that are absorbed from the GI tract. It is the 'gatekeeper' and is responsible for filtering out possible toxins before they reach delicate tissues such as the brain. The hepatic vein takes blood from the liver to the heart.
heart
The liver is the organ that receives nutrients first when transported through the vascular system. The hepatic portal vein carries blood containing nutrients absorbed from the small intestine directly to the liver for processing and distribution. This allows the liver to regulate nutrient levels in the blood before they circulate to the rest of the body.
heart
The brain.
the heart itself
Liver
The first organ to form in an embryo is the heart. It starts to develop early in gestation and is essential for pumping blood and circulating nutrients throughout the body as the embryo grows.
The liver
The stomach