Hepatic portal system starts from

Options

A. Digestive system to liver
B. Kidney to liver
C. Liver to heart
D. Liver to kidney

Answer

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks where the hepatic portal system starts from. This requires knowledge of the function and pathway of the hepatic portal system.

2. **Defining the Hepatic Portal System**: The hepatic portal system is a network of veins that carries blood from the gastrointestinal (GI) tract and spleen to the liver. It is important to understand that this system is specifically designed to transport nutrient-rich blood from the digestive organs to the liver for processing.

3. **Analyzing the Options**: The options provided are:
- A) Digestive system to liver
- B) Kidney to liver
- C) Liver to heart
- D) Liver to kidney

4. **Identifying the Correct Pathway**: The hepatic portal system is responsible for directing blood from the digestive system (which includes the stomach and intestines) to the liver. This means that the blood collected from the digestive organs is sent to the liver for detoxification and nutrient processing.

5. **Conclusion**: Based on the definition and function of the hepatic portal system, the correct answer is **A) Digestive system to liver**.