Select the letter that identifies the portal vein.

Select the letter that identifies the portal vein.

 

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Correct

- A

- B

- C

- D

Rationale

The portal vein is a blood vessel that conducts blood from the gastrointestinal tract and spleen to the liver. This blood is rich in nutrients that have been extracted from food, and the liver processes these nutrients; it also filters toxins that may have been ingested with the food. 75% of total liver blood flow is through the hepatic portal vein.

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