The blood circulation which starts and ends into capillaries is -

Options

A. Portal circulation
B. Renal circulation
C. Hepatic circulation
D. Lymphatic circulation

Answer

To answer the question "The blood circulation which starts and ends into capillaries is -", we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Blood Circulation**: Blood circulation in the body generally involves arteries that carry blood away from the heart and veins that return blood to the heart. However, there are specific types of circulation where blood flows through capillaries.

2. **Identifying Types of Circulation**: In the human body, there are three notable types of portal circulation where blood starts and ends in capillaries:
- Hepatic portal circulation
- Renal portal circulation
- Hypophysial portal circulation

3. **Explaining Portal Circulation**:
- **Hepatic Portal Circulation**: This involves blood flowing from the gastrointestinal tract and spleen to the liver through the hepatic portal vein. It starts in the capillaries of the intestines and ends in the capillaries of the liver.
- **Renal Portal Circulation**: This is found in some animals (not humans) where blood flows from the capillaries of the kidneys to the renal vein.
- **Hypophysial Portal Circulation**: This involves blood flow from the capillaries in the hypothalamus to the capillaries in the pituitary gland.

4. **Conclusion**: Among these, the most commonly referred to in human physiology is the **Hepatic Portal Circulation**, which starts and ends in capillaries.

### Final Answer:
The blood circulation which starts and ends into capillaries is **Hepatic Portal Circulation**.

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