Definition

Noun: - The main pulmonary artery: The large arterial trunk that carries deoxygenated (venous) blood from the right ventricle of the heart. It is a short vessel that subsequently divides into the right and left pulmonary arteries, which carry blood to the respective lungs.

Usage

• This term is used in precise anatomical and medical contexts to describe a specific part of the cardiovascular system.
• It is typically used in technical writing, medical education, and clinical discussions.

Examples

• During the surgery, the surgeon carefully clamped the truncus pulmonalis.
• An obstruction in the truncus pulmonalis can lead to serious cardiac complications.
• The truncus pulmonalis originates from the right ventricle.

Advanced Usage

• Embryological context: In embryology, the term is related to the development of the great vessels from the truncus arteriosus.
• Pathological context: Conditions like "persistent truncus arteriosus" are congenital heart defects where a single great vessel, instead of the normal separate aorta and pulmonary trunk, fails to divide properly during fetal development. (Note: This refers to the embryological , a related but distinct structure from the definitive ).

Variants and Related Words

• Pulmonary trunk: The most common English synonym for .
• Main pulmonary artery: A descriptive synonym.
• Right pulmonary artery and Left pulmonary artery: The two branches into which the divides.

Synonyms

• Pulmonary trunk
• Main pulmonary artery

Related Phrases / Compound Terms

• Truncus arteriosus: An embryological structure that normally divides to form the ascending aorta and the .
• Pulmonary circulation: The system of blood vessels to which the belongs.

Noun

1. the artery that carries venous blood from the right ventricle of the heart and divides into the right and left pulmonary arteries