What substances would you find in the blood leading away from small intestine towards to liver?

1. Nutrients:

- Glucose: absorbed from carbohydrates

- Amino acids: absorbed from proteins

- Fatty acids and glycerol: absorbed from lipids

- Vitamins: such as vitamin A, D, E, and K

- Minerals: such as iron, calcium, and magnesium

2. Water and electrolytes:

- Water: absorbed along with nutrients

- Electrolytes: such as sodium, potassium, chloride, bicarbonate, and calcium

3. Portal Blood:

- Hepatic portal blood is deoxygenated due to the absorption of nutrients by the intestinal villi. The oxygen content in portal blood is lower compared to arterial blood.

4. Waste products from cellular activities:

- Nitrogenous waste: such as urea and uric acid

- Bilirubin: a breakdown product of heme, the iron-containing component of hemoglobin

- Carbon dioxide: produced as a byproduct of cellular respiration