Blood is transported from the veins of the into a hepatic portal system that drains the blood into the before this blood drains to the . The hepatic portal system is needed because the veins of the GI tract absorb digested , and these must be processed by the liver. The liver also detoxifies any absorbed by the gastrointestinal blood vessels. The hepatic portal system also receives products of erythrocyte from the , so that the liver can recycle some of these components.

Complete Question: Fill in the blanks with the terms provided. Not all terms will be used: inferior vena cava, superior vena cava, destruction, production, digestive organs, spleen, liver respiratory organ, nutrients, thymus and harmful agents.

Blood is transported from the veins of the DIGESTIVE ORGAN into a hepatic portal system that drains the blood into the LIVER before this blood drains to the INFERIOR VENA CAVA . The hepatic portal system is needed because the veins of the GI tract absorb digested NUTRIENTS , and these must be processed by the liver. The liver also detoxifies any HARMFUL AGENTS absorbed by the gastrointestinal blood vessels. The hepatic portal system also receives products of erythrocyte DESTRUCTION from the SPLEEN , so that the liver can recycle some of these components.

Explanation: The hepatic portal system functions to deliver deoxygenated blood to the liver from gastrointestinal tract,gall bladder, pancreas and spleen to be detoxified before returning to the right side of the heart through the inferior vena cava.

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