dr owais makhdoomi mechanism of hearing
TRANSCRIPT
MECHANISM OF HEARING PRESENTED BYDR OWAIS MAKHDOOMI
VALUES OF HEARING
• 14 -20 dB whisper• 40-60 dB conversation• 60- 90 dB noisy room• 130 dB painful noise• 140-180 dB jet noise,
VALUES OF HEARING
• 14 -20 dB whisper• 40-60 dB conversation• 60- 90 dB noisy room• 130 dB painful noise• 140-180 dB jet noise,
VALUES OF HEARING
• 14 -20 dB whisper• 40-60 dB conversation• 60- 90 dB noisy room• 130 dB painful noise• 140-180 dB jet noise,
VALUES OF HEARING
• 14 -20 dB whisper• 40-60 dB conversation• 60- 90 dB noisy room• 130 dB painful noise• 140-180 dB jet noise,
VALUES OF HEARING
• 14 -20 dB whisper• 40-60 dB conversation• 60- 90 dB noisy room• 130 dB painful noise• 140-180 dB jet noise,
TOTAL TRANSFORMER ACTION:• VIBRATORY AREA OF TM=45mm2• FOOTPLATE OF STAPES=3.2MM2• AREAL RATIO=14:1• LEVER RATIO=1.3:1• TOTAL RATIO+18:1
