Term
| Pinna (auricle) and external auditory canal/meatus |
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Definition
| What are the parts of the external ear? |
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Term
| Funnel sound waves to the inner ear. |
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Definition
| What is the function of the outer ear? |
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Term
| auditory ossicles (ear bones), tympanic membrane (ear drum), auditory tube, oval window |
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Definition
| What are the parts of the middle ear? |
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Term
| They amplify the soundwaves entering the ear. |
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Definition
| What is the function of the ear drum and ear bones? |
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Term
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Definition
| What ear bone is attached to the ear drum? |
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Term
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Definition
| What ear bone pounds on the oval window of the cochlea? |
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Term
| It helps to equalize air pressure on both sides of the ear drum. |
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Definition
| What is the function of the auditory tube? |
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Term
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Definition
| The auditory tube opens into the middle ear on one end and the __________ on the other end. |
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Term
| Tiny muscles attached to the ear bones can pull on bones to keep them from vibrating too much in response to a loud noise. This helps to protect the bones and the cochlea. |
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Definition
| What is the tympanic reflex? |
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Term
The cochlea.
The organ of Corti inside the cochlea |
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Definition
| What part of the ear senses hearing? |
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Term
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Definition
| what is the upper chamber in the cochlea? |
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Term
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Definition
| What fluid fills the Scala Vestibuli and Scala Tympani |
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Term
| IN the cochlea between the Scala Vestibuli and Scala Tympani |
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Definition
| Where is the cochelar duct located? |
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Term
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Definition
| What fluid fills the cochlear duct? |
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Term
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Definition
| The hair cells extend up from the ______________ membrane. |
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Term
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Definition
| The hair cells are sheared above by the ______________ membrane |
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Term
| base near the oval window |
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Definition
| High frequency sounds resonate the hair cells at the ____________ of the cochlea |
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Term
| apex (farthest from oval window) |
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Definition
| Low frequence sounds resonate the hair cells at the _________ of the cochlea |
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Term
| By the number of hair cells stimulated |
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Definition
| How is loudness determined? |
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Term
| By which hair cells are stimulated in the cochlea. Certain frequencies cause only certain hair cells to vibrate. |
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Definition
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Term
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Definition
| What is the name of the nerve that transfers impulses out of the ear? |
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Term
| The auditory cortex in the temporal lobe. |
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Definition
| Where are sounds interpreted in the brain? |
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Term
| The perilymph is set into motions by the vibrations from the stapes on the oval window. The perilymph vibrations cause the basilar membrane to vibrate. |
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Definition
| What causes the basilar membrane to vibrate? |
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Term
| When the hairs are bent by the tectorial membrane, they depolarize. |
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Definition
| What stimulates the hair cells to depolarize? |
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Term
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Definition
| What type of receptors are hair cells in the cochlea? |
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Term
| Out the round window in the middle ear |
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Definition
| Where does the vibrational energy exit the cochlea? |
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Term
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Definition
| What is the normal range of human hearing? |
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Term
2000 -3000 Hz or cycles/second
Human voices are in this range. |
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Definition
| What frequencies are we most sensitive to? |
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Term
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Definition
| What type of deafness is it when the tympanic membrane or auditory ossicles don't work? |
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Term
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Definition
| What type of deafness is it when the hair cells or cochlear nerve is damaged? |
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Term
| Vestibule (utricle, saccule) |
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Definition
| What chambers sense static equilibrium? |
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Term
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Definition
| What chambers sense dynamic equilibrium? |
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Term
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Definition
| What organ is sensing rotational movements? |
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Term
| In the ampulla of the semicircular canals. |
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Definition
| Where is the crista ampularis located? |
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Term
| the otolithic membrane and otoliths when they move in response to changes in the position of the head |
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Definition
| What bends the hairs in the macula of the utricle? |
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Term
| The endolymph in the ampula of the semicircular canals is set into motion when the head or body spins. The fluid pushes the crista over and bends the hairs. |
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Definition
| What bends the hairs in the crista ampularis? |
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Term
| When the brain is getting differing information about the body's position/motion from the eyes and ears. |
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Definition
| What causes motion sickness? |
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Term
| They pull the "jelly" in the macula in response to gravitational changes. |
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Definition
| What do the otoliths in your ear do? |
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Term
| In the inner ear. There are 3 and each is located in one of the 3 dimensions of space. |
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Definition
| Where are the semicircular canals located? |
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Term
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Definition
| What two chambers make up the vestibule? |
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Term
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Definition
| What is the organ in the vestibule that responds to changes in the position of the head relative to the ground? |
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Term
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Definition
| What is the name of the top of the crista ampularis that bends the hairs? |
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