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 each of the given options step by step.

### Step 1: Analyze the Pulmonary Vein
- The pulmonary vein carries oxygenated blood from the lungs to the heart.
- Therefore, its endpoint is the heart.

**Hint:** Remember that the pulmonary vein is responsible for transporting oxygenated blood back to the heart.

### Step 2: Analyze the Pulmonary Artery
- The pulmonary artery carries deoxygenated blood from the heart to the lungs.
- Thus, its endpoint is also the lungs, not the heart.

**Hint:** The pulmonary artery is crucial for transporting blood to the lungs for oxygenation.

### Step 3: Analyze the Hepatic Portal Vein
- The hepatic portal vein carries deoxygenated blood from the gastrointestinal tract and spleen to the liver.
- Its endpoint is the liver, which is an organ other than the heart.

**Hint:** The hepatic portal vein is unique because it connects the digestive organs to the liver for detoxification.

### Step 4: Analyze the Hepatic Vein
- The hepatic vein carries deoxygenated blood away from the liver to the heart.
- Therefore, its endpoint is the heart.

**Hint:** The hepatic vein is involved in returning blood from the liver back to the heart.

### Conclusion
After analyzing all the options, the blood vessel that ends in an organ other than the heart is the **hepatic portal vein**, as it terminates in the liver.

**Final Answer:** Hepatic Portal Vein