In fish, this organ carries out its primary function through the conus.
In fish, this organ carries out its primary function through the conus. The most popular measure of this organ's function contains a QRS complex. VSDs and ASDs are congenital defects in this organ. The innermost layer of tissue of this organ contains Purkinje fibers. This organ is surrounded by a double- walled, fluid filled sac. The (*) superior vena cava ends in this organ's right atrium. The primary function of this organ is regulated by pacemakers. For 10 points, name this organ responsible for circulating blood through the body and susceptible to a namesake "attack."
In fish, this organ carries out its primary function through the conus.
{heart}