Middle ear (5) lateral wall or membranous wal鼓膜壁i! s formed by tympanic membrane epitympanic recess鼓室上隐窝 s r(的 弹喊护
(5) lateral wall or membranous wall 鼓膜壁 :is formed by tympanic membrane epitympanic recess 鼓室上隐窝 Middle ear
Middle ear (6) Medial wall or labyrinthine wal迷路壁 promontory岬 Fenestra vestibuli前庭窗 Fenestra cochleae #E: covered by secondary tympanic membrane Prominence of facial canal 第二鼓膜 面神经管凸:
(6) Medial wall or labyrinthine wall 迷路壁: promontory 岬 Fenestra vestibuli 前庭窗 Fenestra cochleae 蜗窗: covered by secondary tympanic membrane 第二鼓膜. Middle ear Prominence of facial canal 面神经管凸 :
Middle ear 2. Aditory tube咽鼓管: Bony part A- #3: posterolateral 1/3, open into the anterior wall of tympanic cavity Cartilaginous part软骨部 anteromedial2/3,0 pen into the nasopharynx鼻咽部 In childhood: shorter, wider and more horizontal than in adult
2. Aditory tube 咽鼓管: Middle ear In childhood: shorter, wider and more horizontal than in adult Bony part 骨部: posterolateral 1/3 ,open into the anterior wall of tympanic cavity Cartilaginous part 软骨部: anteromedial 2/3, open into the nasopharynx 鼻咽部
Middle ear 3. Mastoid antrum乳突窦 and mastoid cells乳突小房 mastoid cells
3. Mastoid antrum乳突窦 and mastoid cells乳突小房 Middle ear mastoid cells
Middle ear 2) content of tympanic cavity 贴骨体 Corpus incudis (1) auditory ossicles听小骨:3块 长脚 Crus longum malleus锤骨 Collum malle Processus lenticularis 为节 ncus砧骨 Processus antenor 淹骨 M16u5 青剂 stapes镫骨 Manubrium mallei Crus posters us anterius我底 Basis stands (2)运动听小骨的肌 tensor tym pani鼓膜张肌 stapedius镫骨肌 LAea
2）content of tympanic cavity (1)auditory ossicles 听小骨：3 块 malleus 锤骨 incus 砧骨 stapes 镫骨 Middle ear （2）运动听小骨的肌 tensor tympani鼓膜张肌 stapedius镫骨肌