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61.The helicotrema allows sound waves to pass from the scala

Question : 61.The helicotrema allows sound waves to pass from the scala : 1417048

 

61.The helicotrema allows sound waves to pass from the scala vestibuli into the scala media.

62.The ossicular system transmits the vibrations of the tympanic membrane to the oval window, movement of which first sets up pressure waves in the endolymph.

63.Sounds at 1000 cycles per second vibrate the basilar membrane closer to the oval window, while sounds at 2000 cycles per second vibrate the membrane closer to the helicotrema.

64.Exposure to very loud noises can result in partial conductive deafness.

65.Hearing aids are more beneficial in conductive deafness than in sensorineural deafness.

66.The semicircular canals are activated as the head starts to rotate, but cease responding if the head movement continues at the same rate in the same direction.

67.The utricle detects changes in head position away from vertical and also detects horizontally directed linear acceleration and deceleration.

68.The vestibular nuclei provide output important in maintaining balance and posture.

69.Mechanical deformation of the hairs of hair cells in the inner ear always results in depolarization of the hair cell synaptic terminal.

70.A single taste bud contains only one chemoreceptor that can respond to all primary tastes but generally responds preferentially to one of the taste modalities.

 

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