Final answer:
The hepatic portal system is located in the liver and it influences drug therapy by processing absorbed drugs.
Step-by-step explanation:
The hepatic portal system is located in the liver and influences drug therapy.
The hepatic portal system consists of the hepatic portal vein and the veins that drain into it. It delivers materials from the digestive and circulatory organs directly to the liver for processing. This includes drugs and toxins that are absorbed from the digestive system.
The liver processes the bloodborne nutrients, toxins, and drugs, and releases nutrients needed by other cells back into the blood. In drug therapy, the liver plays a crucial role in metabolizing and eliminating drugs from the body.