ears Flashcards
(16 cards)
The Inner Ear is involved with
balance and equilibrium
Mechanoreceptors
receptors that respond
to physical forces
Pinna
collects and directs sound waves
hair cells
converting the mechanical vibrations into electrical signals. They transmit this information via the auditory nerve to the brain for interpretation.
tympanic membrane
vibrates as sound waves hit it and transmits the vibrations to the ossicles
External Acoustic Meatus – (external auditory canal)
carved into the temporal bone
its skin lined walls contain the ceruminous
glands that secrete earwax also called cerumen
Eustachian Tube
connects the ear with the throat or the (Pharyngotympanic Tube or Auditory
Tube)
Otitis Media
infection of the middle ear
Middle Ear
Oval Window
membrane covered opening
under Stapes.
Round Window
membrane covered
opening in the vestibule
inner ear subdivisions
- Cochlea
- Vestibule
- Semicircular Canals
Static
pull of gravity when the body not moving helps tell down
and up -vestibule
Dynamic
responds to angular or rotatory movements
- semicircular canals
What large nerve leaves the back of the ear
Vestibulocochlear Nerve/ Auditory Nerve
What is the function of the auditory tube
Equalize pressure in the ear
Which lobe is responsible for hearing ( and smell )?
Temporal