Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Don't know
remaining cards
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Special Senses

Eyes and Ears

Structures of the Inner Ear (3) Vestibule, Cochlea, Semicircular Canals
The Vestibular Apparatus is composed of what two Inner Ear structures? Vestibule and Semicircular Canals
Structures of the External Ear (5) Auricle, Helix, Lobule, External Acoustic Meatus, Tympanic Membrane
Structures of the Middle Ear (7) Malleus, Incus, Stapes, Oval Window, Round Window, Pharyngotympanic Tube, Epitympanic Recess
What are the two muscles located in the Middle Ear? Tensor tympani: stabilizes the eardrum via the malleus Stapedius: stabilizes the stapes
What does the Oval Window do? Leads to the inner ear; holds the stapes
What is the importance of the Pharyngotympanic tube? Leads to the nasal cavity; is normally closed but opens in order to equilibrate external air pressure with pressure inside the ears
Three chambers of the Cochlea Scala Vestibuli, Scala Tympani, Cochlear Duct
What structures make up the Bony Labyrinth? Vestibule, Cochlea, Semicircular Canals
What type of fluid is the Bony Labyrinth filled with? Perilymph: similar to CSF
What type of fluid is the Cochlear Duct filled with? Endolymph: similar to ICF
What is the helicotrema? a region located at the cochlear apex that connects the perilymph containing scala vestibuli and the scala tympani
What is the sensory organ that is located in the cochlea? Spiral Organ of Corti: located in the cochlear duct
Properties of Conduction Deafness Mechanical Problem: problem with the tympanic membrane or ossicles (impacted earwax) Otitis Media: fluid accumulation in middle ear, excessive growth of scar tissue Otosclerosis: overgrowth of tissue fuses stapes to oval window, immobilization of stape
Properties of Sensorineural Deafness damage to hair cells or nerve elements. May be from loud noises, degneration of cochlear nerve, can be treated with cochlear implants
What is Presbycusis A sensorineural deafness that results with the loss of high frequencies of noise due to the effects of aging
Properties of Meniere's Syndrome swelling of the membranous labyrinth that affects all three parts of the inner ear. Caused by excessive endolymph: leads to vertigo, nausea, balance issues
Properties of Tennitus Ringing or clicking sound in the ears in the absence of auditory stimuli; one of the first symptoms of cochlear nerve degeneration
What part of the ear has to do with balance and equilibrium? The vestibular Apparatus (vestibule and semicircular canals)
Created by: kjohnson316