Conus arteriosus
Sternocostal surface of heart. (Conus arteriosus visible at top center.)
Gray's	subject #138 531

The conus arteriosus is a conical pouch formed from the upper and left angle of the right ventricle in the chordate heart, from which the pulmonary artery arises.

A tendinous band, which may be named the tendon of the conus arteriosus, extends upward from the right atrioventricular fibrous ring and connects the posterior surface of the conus arteriosus to the aorta. The conus arteriosus is also called the infundibulum, and it is the entrance from the right ventricle into the pulmonary artery and pulmonary trunk. The wall of the infundibulum is smooth.

[edit] Additional images

Front view of human heart and lungs.

[edit] External links

• -254803911 at GPnotebook
• Conus+arteriosus at eMedicine Dictionary

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This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.