The aorta and the pulmonary artery are the two most important arteries in the human body. The aorta is the biggest artery and channels oxygenated blood to the rest of the body. The pulmonary artery carries deoxygenated blood to the lungs for purification.

Comparison chart

Aorta versus Pulmonary Artery comparison chart
Edit this comparison chartAortaPulmonary Artery
Definition The aorta is the artery that carries oxygenated blood to the entire body. The pulmonary artery carries deoxygenated blood to the lungs.
Function The function of the aorta is to carry oxygenated blood throughout the body. The function of the pulmonary artery is to deliver blood to the lungs for oxygenation.
Location The aorta is located at the top of the heart. The pulmonary artery is located directly beneath the aorta.
Type of circulation The aorta is part of the systemic circulation. The pulmonary trunk with left and right arteries are part of the pulmonary circulation.
Structure of the human heart (click to enlarge)
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Structure of the human heart (click to enlarge)

Function

The aorta supplies oxygenated blood from the heart's pumping chamber to the rest of the body.

Pulmonary artery carries deoxygenated or unaerated blood from the heart to the lungs.Like all arteries, the pulmonary artery carries blood away from the heart. However, the pulmonary artery is the only artery that carries deoxygenated blood from the heart to the lungs.

Structure

Structure of the aorta

Structure of the aorta (click to enlarge)
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Structure of the aorta (click to enlarge)

The aorta is divided into 5 main sections:

Structure of the Pulmonary Artery

View of the pulmonary artery
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View of the pulmonary artery

The pulmonary artery is divided into 2 main sections:

Disease

"AAA" surgery where stents are being implanted in the Heart to repair an abdominal aortic aneurysm
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"AAA" surgery where stents are being implanted in the Heart to repair an abdominal aortic aneurysm

Aortic and pulmonary diseases are often diagnosed with MRA or MRI scans.

Since the aorta is the primary artery which supplies oxygenated blood to the rest of the body, a disease in the aorta can prove fatal. Some of the aortic diseases include:

Pulmonary heart diseases can be acute or chronic in nature.

Did You Know?

American Heart Association Reports the following findings based on 2005-2006 data analysis:

Video explaining the differences

References

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