Find the odd one among the following blood vessels w.r.t. the blood (deoxygenated or oxygenated ) which is carried by them?

Options

A. Pulmonary artery
B. Pulmonary vein
C. Coronary veins
D. Vena cava

Answer

To solve the question of identifying the odd one out among the given blood vessels based on the type of blood they carry (deoxygenated or oxygenated), we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Blood Vessels**: The options provided are:
- Pulmonary artery
- Pulmonary vein
- Coronary veins
- Vena cava

2. **Understand the Function of Each Blood Vessel**:
- **Pulmonary Artery**: This artery carries deoxygenated blood from the heart to the lungs for oxygenation.
- **Pulmonary Vein**: This vein carries oxygenated blood from the lungs back to the heart.
- **Coronary Veins**: These veins drain deoxygenated blood from the heart muscle back to the right atrium of the heart.
- **Vena Cava**: This is a large vein that carries deoxygenated blood from the body back to the heart.

3. **Categorize the Blood Vessels**:
- **Deoxygenated Blood Carriers**:
- Pulmonary artery (deoxygenated)
- Coronary veins (deoxygenated)
- Vena cava (deoxygenated)
- **Oxygenated Blood Carrier**:
- Pulmonary vein (oxygenated)

4. **Identify the Odd One Out**:
- Among the four blood vessels, three (pulmonary artery, coronary veins, and vena cava) carry deoxygenated blood, while only one (pulmonary vein) carries oxygenated blood. Therefore, the odd one out is the **pulmonary vein**.

5. **Conclusion**: The answer to the question is the **pulmonary vein**, as it is the only vessel that carries oxygenated blood.