Eardrum Diagram. A diagram to show the inner structure of the ear microphones mobile phones and telephones contain microphones. Pinna outer portion of ear used to collect sound waves 2.
The ear ossicles in the tympanic cavity receive the vibrations and the stapes pushes the oval window in and out. The diagram shows a posterior marginal perforation in the left ear drum. This causes the eardrum to vibrate and sound is produced.
You can sometimes see the head too.
The outer ear receives the sound waves and transmits them down the ear canal to the eardrum. The first image below shows a tympanic membrane that is very retracted and has worn away almost all of the hearing bones so the ear drum is stuck onto the inner aspect of the ear the hearing organ cochlea. This diagram shows that you can often see the neck of the malleus through an attic perforation. The external outer ear consists of the auricle external auditory canal and eardrum figure 1 and 2.