Transcript Ear anatomy

Ear anatomy
Middle Ear
Middle Ear
Inner Ear
Vestibule
Vestibule
Utricle
Saccule
Maculae
Monitors position of head in space •
Responds to straight-line changes in •
speed & direction
Receptors for static equilibrium •
Macula
Receptor for Static Equilibrium
Inner Ear
Semicircular Canals
Semicircular Canals
Semicircular Canals
Christa ampularis - receptor for dynamic •
equilibrium
Responds to rotational (angular) •
movements
Changes in rotatory velocity movements •
Semicircular Canals
Dynamic Equilibrium
Inner Ear
Oval Window
Inner Ear
Cochlea
Cochlea Unrolled
Sprial Organ of Corti
Spiral Organ of Corti
Receptor organ of hearing •
Different frequencies of vibrations •
(compression waves) in cochlea
stimulate different areas of Organ of
Corti
Interpreted as differences in pitch •
Inner Ear
Round Window
Cochlea
Oval Window
Round Window