The anatomical relationship of the middle ear and the jugular bulb.
The authors have studied the relationship of the superior jugular bulb with the cavity of the middle ear through the examination of 200 temporal bones. It was observed that the jugular fossa presents a prominence in the tympanic cavity in 54 (27%) cases, and was also found dehiscenses on the osseous wall which protects the bulb (in 2 cases) and absolute absence of this wall in one case. It was verified the variability of the degree of exposure of both, the hypotympanum and the fossula of the cochlear fenestra by the prominence of the jugular fossa.
D000328:Adult; D000368:Aged; D004432:Ear, Middle / Q000033:anatomy & histology*; D005154:Facial Nerve / Q000033:anatomy & histology; D005260:Female; D006801:Humans; D007601:Jugular Veins / Q000033:anatomy & histology*; D008297:Male; D008875:Middle Aged; D012405:Round Window, Ear / Q000033:anatomy & histology; D012665:Semicircular Canals / Q000033:anatomy & histology; D013701:Temporal Bone / Q000033:anatomy & histology; D014432:Tympanic Membrane / Q000033:anatomy & histology