What is the name of passage in outer ear which carries sound waves to the ear-drum ?

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Solution

Ear canal is a tube running from the outer ear that carries sound waves to the eardrum.

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What is the name of passage in outer ear which carries sound waves to the ear - drum ?

Name the structures in sequence which transmit the sound induced vibrations from the ear drum to the endolymph of the internal ear in mammals.

Statement 1: Sound vibrations make the ear drum vibrate, the ear drum sends a vibration to the inner ear, from there the signal goes to the brain.
Statement 2: Ear drum is a thin stretched membrane.

Q. Match column I with column II and select the correct option from the given codes.

Column I	Column II
A. Pinna	(i) Collects vibrations in the air which produces sound
B. Ear canal	(ii) Passage for sound wave from pinna to ear drum
C. Tympanic membrane	(iii) Transfers sound wave to ear ossicles
D. Ear ossicles	(iv) Increases the efficiency of transmission of sound waves to the inner ear
E. Cochlea	(v) Has hearing receptors
F. Eustachian tube	(vi) Equalises the pressure on both sides of ear drum
G. Auditory nerves	(vii) Impulse transfer from organ of Corti to auditory cortex in temporal lobe of cerebrum

Q. State whether true or false.

Vibration of the ear drum produces sensation of sound in the ears.

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