External Heart Anatomy Quiz - Free Printable

The image provided is a diagram of the human heart, and the task appears to be labeling the various parts of the heart. Below is the solution with explanations for each labeled part:

Labeled Parts of the Heart Diagram:

1. Superior Vena Cava
- This is the large vein that carries deoxygenated blood from the upper body back to the heart.

2. Pulmonary Artery
- This artery carries deoxygenated blood from the right ventricle to the lungs for oxygenation.

3. Right Atrium
- The right atrium is one of the four chambers of the heart. It receives deoxygenated blood from the body via the superior vena cava and inferior vena cava.

4. Right Ventricle
- The right ventricle pumps deoxygenated blood into the pulmonary artery, which then transports it to the lungs for oxygenation.

5. Inferior Vena Cava
- This is the large vein that carries deoxygenated blood from the lower body back to the heart.

6. Left Atrium
- The left atrium receives oxygenated blood from the lungs via the pulmonary veins.

7. Left Ventricle
- The left ventricle is the strongest chamber of the heart. It pumps oxygenated blood through the aorta to the rest of the body.

8. Aorta
- The aorta is the largest artery in the body. It carries oxygenated blood from the left ventricle to the rest of the body.

9. Pulmonary Veins
- These veins carry oxygenated blood from the lungs back to the left atrium of the heart.

10. Coronary Arteries
- These arteries supply oxygenated blood to the heart muscle itself. They are visible on the surface of the heart.

11. Interventricular Septum
- This is the muscular wall that separates the right ventricle from the left ventricle.

12. Interatrial Septum
- This is the wall that separates the right atrium from the left atrium.

Explanation of the Heart's Function:

The heart is a muscular organ responsible for pumping blood throughout the body. It has four chambers:
- Right Atrium: Receives deoxygenated blood from the body.
- Right Ventricle: Pumps deoxygenated blood to the lungs via the pulmonary artery.
- Left Atrium: Receives oxygenated blood from the lungs.
- Left Ventricle: Pumps oxygenated blood to the rest of the body via the aorta.

The pulmonary circulation involves the movement of blood between the heart and the lungs, where it picks up oxygen. The systemic circulation involves the movement of oxygenated blood from the heart to the rest of the body and the return of deoxygenated blood back to the heart.

Final Answer:

Here is the labeled diagram with the corresponding names:

1. Superior Vena Cava
2. Pulmonary Artery
3. Right Atrium
4. Right Ventricle
5. Inferior Vena Cava
6. Left Atrium
7. Left Ventricle
8. Aorta
9. Pulmonary Veins
10. Coronary Arteries
11. Interventricular Septum
12. Interatrial Septum

Boxed Final Answer:
\[
\boxed{
\text{1. Superior Vena Cava, 2. Pulmonary Artery, 3. Right Atrium, 4. Right Ventricle, 5. Inferior Vena Cava, 6. Left Atrium, 7. Left Ventricle, 8. Aorta, 9. Pulmonary Veins, 10. Coronary Arteries, 11. Interventricular Septum, 12. Interatrial Septum}
}
\]