Скачать или смотреть أبسط شرح للأذن (الأذن الخارجيه-الأذن الوسطي - الأذن الداخليه) || ANATOMY OF THE EAR

أبسط شرح للأذن (الأذن الخارجيه-الأذن الوسطي - الأذن الداخليه) || ANATOMY OF THE EAR

Structures of the External, Middle,
and Inner Ear
The structures of the ear can be divided into three main
portions: external, middle, and inner .
The external ear consists of the auricle and the external auditory meatus. The external auditory meatus is a
sound-conducting canal that terminates at the tympanic
membrane of the middle ear.
The narrow, air-filled middle ear, or tympanic cavity,
communicates with both the mastoid antrum and the nasopharynx. Air is conveyed from the nasopharynx to the
tympanic cavity through the eustachian tube (auditory
tube). The middle ear consists of the



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