Septomarginal trabecula in the right cardiac ventricle of some carnivores.
D000818:Animals; D002335:Carnivora / Q000033:anatomy & histology*; D002415:Cats / Q000033:anatomy & histology; D004285:Dogs / Q000033:anatomy & histology; D006329:Heart Conduction System / Q000033:anatomy & histology; D006346:Heart Septum / Q000033:anatomy & histology*; D006352:Heart Ventricles / Q000033:anatomy & histology*; D010210:Papillary Muscles / Q000033:anatomy & histology*