What's Conus Arteriosus

Definition of conus arteriosus 1 : a conical prolongation of the right ventricle in mammals from which the pulmonary arteries emerge. — called also conus.

What is the difference between conus arteriosus and bulbus arteriosus?

In the hearts having entirely trabeculated ventricles, the conus arteriosus appears as a distinct segment interposed between the ventricle and the bulbus arteriosus, being formed by compact vascularized myocardium. However, the conus of several species lacks vessels.

Do mammals have a conus arteriosus?

the most anterior part of the simple tubular heart of lower vertebrates and embryos of higher vertebrates, leading into the artery that leaves the heart; in mammals it forms a part of the upper wall of the right ventricle, in which the pulmonary artery originates. Also called conus.