Eye and ear and kidney Flashcards
Auricle
(outer ear)
collects and directs sound waves to auditory canal
Auditory canal
(outer ear)
Directs soundwaves to eardrum
tympanic membrane (eardrum)
(Middle ear)
Translates vibrations to ossicles
Ossicles
(middle ear)
amplify pressure of sound waves as they are transmitted to oval window
Oval window
(middle ear)
Transmits vibrations from stirrup to fluid filled cochlea
Round window
(inner ear)
Equalises pressure in the cochlea when oval window vibrates
Eustachian tube
(inner ear)
equalises pressure on both sides of eardrum
Cochlea
(inner ear)
Vibrations cause hair cells to bend producing a nerve impulse
Auditory nerve
(inner ear)
Transmits dound information to brain
Conjuctiva
Protects and lubricates eye with tears and mucous
Cornea
barrier protection for the eye and refracts light rays
Sclera
Provides structure and support and maintains shape of the eyeball
Choroid
Provides blood supply to the eye
Aqueous humour
Maintains pressure, provides eye nutrition and refracts light
Iris
controls amount of light that enters eye