Answer :
Final answer:
The b. Hepatic portal system is unique and unusual in that it carries blood from the digestive tract to the liver for processing before it enters systemic circulation.
Explanation:
Understanding of the Hepatic Portal System:
- The Hepatic Portal System is unique and unusual in its circulation pattern. It carries blood from the spleen, stomach, and intestines to the liver for processing prior to entering the systemic circulation.
- The liver receives its blood supply from two different sources: the hepatic artery, which delivers systemic blood, and the hepatic portal vein, which delivers blood rich in nutrients from the gastrointestinal tract.
- The processed blood exits the liver via the hepatic vein and passes into the inferior vena cava.
- The liver plays a crucial part in managing the composition of the blood, by processing the nutrients and waste materials it receives. It produces plasma proteins, clotting factors, and bile; and it disposes of worn-out cell components and waste products.
- Thus, the hepatic portal system allows the liver to regulate the nutrient content in our circulatory system effectively.
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