Hearing Flashcards
What is the auditory canal?
The auditory canal leads vibrations to the eardrum
What two sensory fiction does the ear include?
Hearing and balance
What is the tympanum?
The tympanum is the ear drum
What are the three bones that translate vibrations from the ear drum into the ear?
The hammer, anvil and stirrup
What is the oval window?
The oval window is the entry point for vibration to the cochlea
What is the cochlea?
The cochlea is a fluid filled sac that is lined with tiny hairs that pick up on the waves and distinguishes the intensity of the wave as different sounds.
How does the ear control the intensity of sound?
The oval window amplifies sound and muscles of the ear reduces the sound’s intensity.
How do we lose our hearing with age?
The hairs lining the cochlea decay over time.
What is cerumen impact?
The build up of ear wax
What is a disturbance in balance characterized by vertigo and tinnitus?
Meniere’s ear
What is otitis?
Inflammation
What is externa?
Swimmers ear
What is media?
A middle ear infection
What is interna?
An inner ear infection.
What is Osteosclerosis?
The immobilization of the stapes.
What is presbycusis?
Natural hearing loss with age.
Name all parts of the external ear
Auricle(pinna)
External auditory canal
Tympanic membrane
What is the pinna?
What we recognize as our ear
What is the external auditory canal?
A tunnel to guides sound to the eardrum.
What is the tympanic membrane?
The eardrum
Name all parts of the middle ear.
Ear ossicles
Eustachian Tube
Oval window
What are the three ear ossicles?
Malleus (hammer)
Incus (anvil)
Staples (stirrup)
What is the Eustachian tube?
Connects middle ear to throat and equalizes pressure for the eardrum.
What does the oval window do?
The separation from the middle ear from inner ear.
What organs are in the inner ear(labyrinth).
Semicircular canal
Vestibules
Cochlea
What are the roles of the semicircular canals?
They detect the balance of the body.
What are the vestibules?
Deals with equilibrium
What are the goals of the cochlea?
Hearing receptors
Organ of corti
