Quiz for 11/25/13 Flashcards
separates the outer and middle ear;
Tympanic membrane
Transmits the sound energy to the ossicles in the middle ear
Tympanic membrane
connects the middle ear to nasopharynx
Eustachian tube
Equalizes pressure in the middle ear cavity
Eustachian tube
Transmit the vibratory motion of the eardrum to the oval window of the vestibule (stapes)
Auditory ossicles
contract reflexively in response to loud sounds to prevent damage to the tympanic membrane
Tensor Tympani + Stapedius muscles
The auditory ossicles
Malleus, Incus, Stapes
equilibrium receptors in the utricle and saccule
maculae
respond to gravity changes in the position of the head
maculae
Help us maintain Static Equilibrium (help us hold w/e position we put our body in)
maculae
Lie in ampulla (entrance swelling) of each of the Three Semicircular canals
Crista ampullaris
Equilibrium receptor
Crista Ampullaris
Respond to angular/rotational dynamic movements of the head
Cristae Ampullares
Hearing receptor with sterocilia in the Cochlear duct (within scala media)
Spiral organ of Corti
Flexes in response to sound wave vibrations;
supports the organ of Corti;
fibrous and flexible
Basilar membrane
secures ends of the stereocilia
Tectorial membrane
Hearing
1. Sound waves vibrate the ___ membrane
tympanic
Hearing
2. ___ ossicles vibrate, Pressure is amplified
Auditory
- Pressure waves created by the ____ pushing on the oval window through the perilymph in the scala vestibuli
stapes
- Pressure waves created by the stapes pushing on the ___ through the perilymph in the scala vestibuli.
oval window
- Pressure waves created by the stapes pushing on the oval window through the ___ in the scala vestibuli.
perilymph
- Pressure waves created by the stapes pushing on the oval window through the perilymph in the ___.
scala vestibuli
abuts the oval window, contains perilymph
scala vestibuli
- Sounds in the hearing range go through the ___, vibrating the basilar membrane an deflecting hairrs on inner hair cells. The moving hair cells stimulate transduce to graded potentials that will ultimately send APs along the cochlear nerve.
cochlear duct
- Sounds in the hearing range go through the cochlear duct, vibrating the ___ an deflecting hairrs on inner hair cells. The moving hair cells stimulate transduce to graded potentials that will ultimately send APs along the cochlear nerve.
basilar membrane
- Sounds in the hearing range go through the cochlear duct, vibrating the basilar membrane and deflecting hairs on ___. The moving hair cells stimulate transduce to be graded potentials that will ultimately send APs along the cochlear nerve.
inner hair cells
- Sounds in the hearing range go through the cochlear duct, vibrating the basilar membrane and deflecting hairs on inner hair cells. The ___ stimulate transduce to be graded potentials that will ultimately send APs along the cochlear nerve.
moving hair cells
- Sounds in the hearing range go through the cochlear duct, vibrating the basilar membrane and deflecting hairs on inner hair cells. The moving hair cells stimulate transduce to be ___ that will ultimately send APs along the cochlear nerve.
graded potentials
- Sounds in the hearing range go through the cochlear duct, vibrating the basilar membrane and deflecting hairs on inner hair cells. The moving hair cells stimulate transduce to be graded potentials that will ultimately send ___ .
APs along the cochlear nerve
Impulses from the cochlea pass from the spiral ganglion to the ____
cochlear nucleo of the mudulla
Impulses pass to the auditory cortex via??
The Thalamus!
macula in the utricle respond to ____
horizontal movements and tilting head side to side
macula in the saccule responds to ___
vertical movements
