Fully digested food reaches to liver by `:-`

Options

A. Hepatic portal vein
B. Hepatic artery
C. Hepatic vein
D. All the above

Answer

To answer the question "Fully digested food reaches the liver by:", we will analyze the options provided and determine the correct one step by step.

### Step-by-Step Solution:

1. **Understanding the Options**:
- **Hepatic Portal Vein**: This vein carries blood from the gastrointestinal tract, gallbladder, pancreas, and spleen directly to the liver. The blood in this vein is rich in nutrients and may also contain toxins from the digested food.
- **Hepatic Artery**: This artery supplies oxygenated blood to the liver from the heart. While it is important for the liver's oxygen supply, it does not carry the nutrients from digested food.
- **Hepatic Vein**: This vein carries deoxygenated blood away from the liver back to the heart. It does not transport nutrients from digested food to the liver.
- **All of the Above**: This option suggests that all the mentioned vessels are responsible for transporting fully digested food to the liver, which is incorrect.

2. **Analyzing the Function of Each Vessel**:
- The **Hepatic Portal Vein** is specifically designed to transport nutrient-rich blood from the digestive organs to the liver for processing.
- The **Hepatic Artery** provides oxygen but does not carry digested nutrients.
- The **Hepatic Vein** returns blood to the heart and does not play a role in transporting digested food to the liver.

3. **Conclusion**:
- Since the question specifically asks about the transport of fully digested food to the liver, the correct answer is the **Hepatic Portal Vein**. This vessel is responsible for carrying the nutrients derived from digested food directly to the liver.

### Final Answer:
Fully digested food reaches the liver by the **Hepatic Portal Vein**.

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