Which blood vessel ends in an organ other than the heart?

Options

A. Pulmonary vein
B. Pulmonary artery
C. Hepatic portal vein
D. Hepatic vein

Answer

To solve the question "Which blood vessel ends in an organ other than the heart?", we will analyze the provided options step by step.

### Step 1: Understand the Function of Each Blood Vessel
- **Pulmonary Vein**: This vessel carries oxygenated blood from the lungs to the heart. Therefore, it ends in the heart.

- **Pulmonary Artery**: This artery carries deoxygenated blood from the right ventricle of the heart to the lungs. Thus, it also ends in the heart.

- **Hepatic Portal Vein**: This vein carries blood from the gastrointestinal tract, gallbladder, spleen, and pancreas to the liver. It does not end in the heart but rather in the liver.

- **Hepatic Vein**: This vein carries deoxygenated blood from the liver back to the heart. Hence, it ends in the heart.

### Step 2: Identify the Correct Answer
From the analysis:
- The **pulmonary vein** and **pulmonary artery** both end in the heart.
- The **hepatic vein** also ends in the heart.
- The **hepatic portal vein** is the only vessel that ends in an organ other than the heart, specifically the liver.

### Conclusion
The correct answer is the **Hepatic Portal Vein**.

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