Pulmonary Artery

Anatomy

The pulmonary artery carries deoxygenated blood from the right ventricle to the lungs. It is the only artery in the human body that carries deoxygenated blood. The pulmonary trunk (TP) starts at the pulmonary valve, is ±5cm in length and ±2cm in diameter. Hereafter, the trunk splits into two main branches, the left (APS) –, and right pulmonary artery (APD), which transport the deoxygenated blood further into the corresponding lungs.

 

Image source cove point foundation

 

Pulmonary artery dimensions
Region of measurement Reference range Mildly abnormal Moderately abnormal Severely abnormal
1cm below pulmonic valve 1.5–2.1 2.2–2.5 2.6–2.9 ≥3.0

 

 

 

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