conus arteriosus การใช้

Its upper and left angle forms a conical pouch, the conus arteriosus, from which the pulmonary artery arises.
The conus arteriosus is not present in any amniotes, presumably having been absorbed into the ventricles over the course of evolution.
In teleosts, the conus arteriosus is very small and can more accurately be described as part of the aorta rather than of the heart proper.
This species is very different from most chordates in that it has no conus arteriosus, a tendinous band of tissue from which the pulmonary artery arises.
Also, the original valves of the conus arteriosus have been replaced by a spiral valve that divides it into two parallel parts, thereby helping to keep the two bloodstreams separate.