Blood from superior vena cava flows into ______

Options

A. Right atrium
B. Right ventricle
C. Left atrium
D. Left ventricle

Explanation

To answer the question "Blood from superior vena cava flows into ______", we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Function of the Superior Vena Cava**: The superior vena cava is a large vein that carries deoxygenated blood from the upper parts of the body (like the head, neck, and arms) back to the heart.

2. **Identify the Entry Point into the Heart**: The blood from the superior vena cava enters the heart through a specific chamber.

3. **Locate the Right Atrium**: The correct chamber where the blood from the superior vena cava flows into is the right atrium. This is the upper right chamber of the heart.

4. **Confirm the Flow Path**: Once the blood enters the right atrium, it will then flow into the right ventricle, which pumps it to the lungs for oxygenation.

5. **Final Answer**: Therefore, the blood from the superior vena cava flows into the right atrium.

### Final Answer:
Blood from the superior vena cava flows into the **right atrium**.

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