Anatomy of the eustachian tube.
D002356:Cartilage / Q000033:anatomy & histology; D005064:Eustachian Tube / Q000033:anatomy & histology*; D006801:Humans; D008022:Ligaments / Q000033:anatomy & histology; D009132:Muscles / Q000033:anatomy & histology; D013701:Temporal Bone / Q000033:anatomy & histology; D013719:Tensor Tympani / Q000033:anatomy & histology