Open Question
If severe congestion from a cold prevented your pharyngotympanic tube from opening, what could happen to your tympanic membrane? Explain your answer.
15. The Special Senses
Introduction to Special Senses
Back15. The Special Senses
Introduction to Special Senses
- Open Question
Suppose the round window in your middle ear became very stiff. What effect would this have on hearing, and why?
- Open Question
Mrs. Flores is a 45-year-old female who suffered a fracture of the ethmoid bone as the result of a car accident. Several days later, she complained that she couldn't taste her food very well. How is her injury related to the loss of taste sensation?
- Open Question
Your 60-year-old patient, Mr. Guster, has Bell's palsy, which causes dysfunction of those portions of the facial nerve that control muscles of facial expression. He is surprised when you tell him to tape the eyelids of his right eye closed at night to prevent dryness. Why might Bell's palsy cause dryness of the eye on the affected side?
- Open QuestionWhich of the following is not a possible cause of conduction deafness?a. impacted cerumen,b. middle ear infection,c. cochlear nerve degeneration,d. otosclerosis.
- Open QuestionOlfactory nerve filaments are founda. in the optic bulbs,b. passing through the cribriform plate of the ethmoid bone,c. in the optic tracts,d. in the olfactory cortex.
- Open QuestionWhere are the olfactory sensory neurons, and why is that site poorly suited for their job?
- Open QuestionA progressive disorder characterized by the loss of higher-order cerebral functions is (a) Parkinson's disease, (b) parasomnia, (c) Huntington's disease, (d) Alzheimer's disease.
- Open QuestionA reduction in sensitivity in the presence of a constant stimulus is (a) transduction, (b) sensory coding, (c) line labeling, (d) adaptation.
- Open QuestionWhich of the following statements does not correctly describe the spiral organ?a. Sounds of high frequency stimulate hair cells at the basal end,b. the 'hairs' of the receptor cells are embedded in the tectorial membrane,c. the basilar membrane acts as a resonator,d. the more numerous outer hair cells are largely responsible for our perception of sound.
- Open QuestionPitch is to frequency of sound as loudness is toa. quality,b. intensity,c. overtones,d. all of these.
- Open QuestionSound waves are converted into mechanical movements by the (a) auditory ossicles, (b) cochlea, (c) oval window, (d) round window, (e) tympanic membrane.
- Open QuestionThe spiral organ is located in the_______of the internal ear. (a) utricle, (b) bony labyrinth, (c) vestibule, (d) cochlea.
- Open Questiondentify the structures of the external, middle, and internal ear in the following figure. a. ___b. ___c. ___d. ___e. ___f. ___g. ___h. ___i. ___
- Open QuestionAuditory information about the frequency and intensity of stimulation is relayed to the CNS over the cochlear nerve, a division of cranial nerve (a) IV, (b) VI, (c) VIII, (d) X.