Parts of the Heart and Blood Flow worksheet - Free Printable

To label the parts of the heart in the provided image, we need to identify each structure based on its location and function. Here is the step-by-step solution:

Step 1: Understand the Structure of the Heart

The human heart is divided into four chambers:
- Two atria (top chambers): Right atrium and left atrium.
- Two ventricles (bottom chambers): Right ventricle and left ventricle.

Additionally, there are major blood vessels and valves associated with these chambers:
- Vena cava: Brings deoxygenated blood from the body to the right atrium.
- Pulmonary artery: Carries deoxygenated blood from the right ventricle to the lungs.
- Pulmonary vein: Brings oxygenated blood from the lungs to the left atrium.
- Aorta: Carries oxygenated blood from the left ventricle to the body.
- Pulmonary valve: Located between the right ventricle and the pulmonary artery.
- Aortic valve: Located between the left ventricle and the aorta.

Step 2: Match Labels to the Image

Using the provided labels, let's match them to the correct parts of the heart in the image:

#### Top Left Side:
1. Vena cava: This is the large vessel that brings deoxygenated blood from the body to the right atrium. It is located at the top left of the heart.
- Label: vena cava

#### Top Right Side:
2. Pulmonary artery: This vessel carries deoxygenated blood from the right ventricle to the lungs. It is located at the top right of the heart.
- Label: pulmonary artery

#### Middle Left Side:
3. Right atrium: This chamber receives deoxygenated blood from the vena cava and pumps it into the right ventricle.
- Label: right atrium

4. Right ventricle: This chamber pumps deoxygenated blood into the pulmonary artery.
- Label: right ventricle

#### Middle Right Side:
5. Left atrium: This chamber receives oxygenated blood from the pulmonary veins and pumps it into the left ventricle.
- Label: left atrium

6. Left ventricle: This chamber pumps oxygenated blood into the aorta.
- Label: left ventricle

#### Bottom Left Side:
7. Pulmonary vein: These vessels bring oxygenated blood from the lungs to the left atrium. They are located at the bottom left of the heart.
- Label: pulmonary vein

#### Bottom Right Side:
8. Aorta: This is the main artery that carries oxygenated blood from the left ventricle to the rest of the body.
- Label: aorta

#### Valves:
9. Pulmonary valve: Located between the right ventricle and the pulmonary artery.
- Label: pulmonary valve

10. Aortic valve: Located between the left ventricle and the aorta.
- Label: aortic valve

Final Labeled Diagram:

Here is how the labels should be placed:
- Top left: vena cava
- Top right: pulmonary artery
- Middle left: right atrium, right ventricle
- Middle right: left atrium, left ventricle
- Bottom left: pulmonary vein
- Bottom right: aorta
- Valves: pulmonary valve (between right ventricle and pulmonary artery), aortic valve (between left ventricle and aorta)

Solution Summary:

| Label | Position in Image |
|----------------------|-------------------------------------------|
| vena cava | Top left |
| pulmonary artery | Top right |
| aorta | Bottom right |
| right atrium | Middle left |
| left atrium | Middle right |
| right ventricle | Middle left |
| left ventricle | Middle right |
| pulmonary vein | Bottom left |
| pulmonary valve | Between right ventricle and pulmonary artery |
| aortic valve | Between left ventricle and aorta |

Final Answer:

\boxed{
\begin{aligned}
&\text{Top left: vena cava} \\
&\text{Top right: pulmonary artery} \\
&\text{Middle left: right atrium, right ventricle} \\
&\text{Middle right: left atrium, left ventricle} \\
&\text{Bottom left: pulmonary vein} \\
&\text{Bottom right: aorta} \\
&\text{Valves: pulmonary valve (between right ventricle and pulmonary artery), aortic valve (between left ventricle and aorta)}
\end{aligned}
}