special sense hearing and equalibrium contd.

Question 1

• Sensorineural deafness

Answer 1

o Results from damage to neural structures anywhere from the cochlear hair cells through neurons of the auditory cortex

Question 2

• Presbycusis

Answer 2

o Type of sensorineural deafness that occurs commonly in peopleby the time they are in their sixties

Question 3

• Conduction deafness

Answer 3

o Occurs when something prevents sound waves from reaching the fluids of the internal ear

Question 4

• Nystagmus

Answer 4

o Involuntary rolling of the eyes in any direction or the trailing of eyes slowly in one direction

Question 5

• Weber

Answer 5

o Test to determine conduction and sensorineural deafness

Question 6

• Rinne

Answer 6

o Test for comparing bone and air-conduction hearing

Question 7

• Barany

Answer 7

o Test for induction of nystagmus and vertigo

Question 8

• Romberg

Answer 8

o Test for the integrity of the dorsal white column of the spinal cord, which transmits impulses to the brain from proprioceptors involved with posture