Zusammenfassung der Ressource
EARS
- Disorders
- Hearing loss
- Central
- No deficit for simple sounds
- Auditory verbal agnosia
- Can occur after stroke
- Sensorineural
- Damage to cochlea: hair cells & synaptopathy
- Loss of volume & resolution
- Causes
- Presbycusis
- Drug damage
- Disease e.g. meningitis, measles
- Genetic
- Conductive
- Causes
- Infection
- Otitis media w effusion
- Otosclerosis
- Tinnitus
- No treatment
- Vestibular System
- Vestibule
- Utricle
- Horizontal macula
- Saccule
- Vertical macula
- Detects changes in head angle & linear acceleration
- Semicircular canals
- Detect rotational acceleration
- Superior
- Posterior
- Lateral
- Hair cells in cupula in ampulla
- Vestibulo-ocular reflex
- Counter-rotates eyes when head moves
- Anatomy
- External ear