Auditory system
From Wikipedia, the free encyclopedia
The auditory system is the sensory system for the sense for hearing.
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[change] Structure of the ear
[change] Outer ear
The outer ear is the folds of cartilage surrounding the ear canal. They are called the pinna.
[change] Middle ear
Sound waves travelling through the ear canal will hit the tympanum, or eardrum. The malleus (hammer), incus (anvil) and stapes (stirrup). These bones convert the waves to high pressure vibrations. They are then converted to nerve impulses in the cochlea.
[change] Inner ear
The inner ear is made mostly of the cochlea.
[change] The cochlea
The cochlea is made up of three pieces, and is filled with liquid. It transforms sound waves to electric signals in neurons.
[change] Other websites
- Promenade 'round the cochlea
- Washington University Neuroscience Tutorial - Auditory system
