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Title: ear canal
Caption: Illustration of the normal ear canal. The inner ear contains a maze of fluid-filled passages called the labyrinth. The cochlea is a hollow spiral containing microscopic hairs that respond to sound vibrations conveyed from the middle ear. The near end of the spiral picks up high-frequency sound; the central (far) end detects low frequency sound. Nerves connected to the cochlea carry sound impulses to the brain. The semi-circular canals provide the sense of balance by detecting movement of fluid through the three planes.
Category: SCIENCE
Credit: Album / Science Source / Brian Evans
Image size: 1800 × 1641 px | 8.5 MB
Print size: 15.2 × 13.9 cm | 708.7 × 646.1 in (300 dpi)