The hepatic portal system also receives products of erythrocyte destruction from the so that the liver can "recycle" some of these components.

The hepatic portal system receives products of erythrocyte (red blood cell) destruction from the spleen. Here's a step-by-step explanation:

1. Erythrocytes, or red blood cells, have a lifespan of about 120 days. After this, they are broken down in the spleen, which is an organ that filters blood.

2. The breakdown of erythrocytes results in several components, including iron and heme, the latter of which is further broken down into bilirubin.

3. These components are then released into the bloodstream. The spleen, which is part of the circulatory system, is connected to the liver via the hepatic portal vein.

4. The hepatic portal system carries blood from the gastrointestinal tract and spleen to the liver. Therefore, the products of erythrocyte destruction are transported to the liver through this system.

5. Once in the liver, these components can be "recycled". For example, iron can be reused in the production of new red blood cells, and bilirubin is excreted in bile, which aids in digestion.

So, the hepatic portal system plays a crucial role in the recycling of erythrocyte components by transporting them from the spleen to the liver.