EAR A&P
What are the structures of hearing
external acoustic, tympanic membrane, stapes, malleus, incus, round/oval window, cochlea, basilar/tectorial membrane.
What monitors the position of the head when the head is still,
The vestibule.
This is found within the Utricle and the Saccule. contains the hair cells sterocilia and kinocilia.
The maculae
What are the structures for Equilibrium.
Semi circular canals, vestibule, utricle, saccule.
What lies posterior and lateral to the vestibule, and also contains the cristae ampularis.
The Semi-Circular Canals.
What is responsible for Dynamic Equilibrium/angular/rotational.
The Semi-Circular Canals.
This membrane vibrates when hit with sound waves, and forms the boundry between the external and middle ear.
The Tympanic Membrane.
These are the hair cells involved in sending signals to the brain for both hearing and equilibrium.
Stereocilia.
This is responsible for horizontal movements.
The Utricle.
what are the malleus, stapes, and incus, and their functions.
The Ossicles
malleus: attached to ear drum
Incus: between malleus and stapes
Stapes: vibrates off the oval window.
for equillibrium, when steriocilia towards this, it then sends more action potentials, and send more signals to the brain
Kinocilia.
This is responsible for vertical movement
The saccule.
What is the spiraling conical chamber in the bony labirynth.
The Cochlea.