Eustachian tube of several mammalian species.
D000717:Anatomy, Comparative; D000818:Animals; D002356:Cartilage / Q000033:anatomy & histology; D002415:Cats; D002685:Chiroptera; D007312:Eulipotyphla; D005064:Eustachian Tube / Q000033:anatomy & histology*; D006736:Horses; D006801:Humans; D009893:Opossums; D011817:Rabbits; D051381:Rats; D012756:Sheep; D013045:Species Specificity