A genus consisting of species of Conus, having a rhomboidal or quadrilateral form and a coronated spire. Shell conical, with very short spire, and narrow aperture with parallel borders; operculum unguiform Conus.
New Word List Word List. Save This Word! Anatomy , Zoology. Institutional subscriptions support Language. Keep me signed in. Forgot your password? Sign in with Facebook. Sign in with Apple. Description The upper and left angle of the right ventricle forms a conical pouch, the conus arteriosus or infundibulum, from which the pulmonary artery arises.
This definition incorporates text from a public domain edition of Gray's Anatomy 20th U. Subscribe now Discover our subscription plans Subscribe.
Manage cookies Accept. Cookie settings. This article challenges the concept of the disappearance of the conus arteriosus in the teleost heart. A total of 28 teleost species belonging to 19 families and 10 orders were analyzed.
The hearts were divided into two large groups: those having entirely trabeculated ventricles, and those possessing a compacta. 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.
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