Ear
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In vertebrates, an ear is the organ that enables hearing and body balance using the vestibular system. In humans, the ear is described as having three parts: the outer ear, the middle ear and the inne
The human outer ear
Perforation (otoscope)
Fluid in middle ear cavity
Stretching of the earlobe and various cartilage piercings
Middle ear
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The middle ear is the portion of the ear medial to the eardrum, and distal to the oval window of the cochlea.
Ear
…enables hearing and (in mammals) body balance using the vestibular system. In humans, the ear is described as having three parts: the outer ear, the middle ear and the inner ear. The outer ear consists of the auricle, the visible outer part, and the ear canal. The middle ear includes the tympanic cavity and…
The middle ear matches mechanical impedance, like a lever.
1871 Descent F937.1 fig 03