Acoustic Reflex Word Scramble
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| Term | Definition |
| Sensory innervation of the facial (VII) cranial nerve | taste from the anterior 2/3 of the tongue |
| Motor innervation of the facial (VII) cranial nerve | all muscles of facial expression and the stapedius muscle of the middle ear. Also sends motor impulses to the rest of your ear. |
| Functions of the facial (VII) cranial nerve | facial expression, taste, salivation, lachrymation, prevention of acoustic injury |
| Pathology of the facial (VII) cranial nerve | facial paralysis, loss of taste, dry mouth, loss of tears, acoustic trauma |
| Noise must be at least __ dB to activate the facial nerve. | 85 |
| Ipsilateral reflex | reflex of the stapedial muscle on the same side that the loud noise was introduced on |
| Contralateral reflex | reflex of the stapedial muscle on the opposite side from where the loud noise was introduced |
| In a tympanogram where you contracted the stapedial muscle, you should see... | A-s type indicating a stiff system. You should see a decrease in the peak of compliance; more impedance. |
| When testing for the ipsilateral reflex, the tympanometry and the loud noise should be... | on the same side. |
| When testing for the contralateral reflex, the tympanometry and the loud noise should be... | on opposite sides. The loud sound should be on the ear you are not testing. |
| Your patient has a cochlear lesion on the right side. Impedance is measured on the right. | Ipsilateral ART is absent, contralateral ART is present |
| Your patient has a lesion on the left facial nucleus. Impedance is measured on the right. | Both ipsilateral and contralateral ART are present. |
| Your patient has a lesion on the left facial nucleus. Impedance is measured on the left. | Both ipsilateral and contralateral ART are absent. |
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