Question

Write briefly the functions of the following parts of ear -

(a) Pinna

(b) Auditory canal

(c) Auditory nerve​

Answer 1

(a) Pinna :- The purpose of the pinna is to collect sound. It does so by acting as a funnel, amplifying the sound and directing it to the ear canal. In mammals like cats and dogs, it is obviously highly directional, but even in humans, the pinna functions as a directional sound collector.

(b) Auditory canal :-The ear canal – the auditory canal. Once the sound waves have passed the pinna, they move two to three centimetres into the auditory canal before hitting the eardrum, also known as the tympanic membrane. The function of the ear canal is to transmit sound from the pinna to the eardrum.

(c) Auditory Nerve :-The cochlear nerve, also known as the acoustic nerve, is the sensory nerve that transfers auditory information from the cochlea (auditory area of the inner ear) to the brain. It is one of the many pieces that make up the auditory system, which enables effective hearing

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Answer 2

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your answer ❤❤

#1 . pinna=. the outer ear is called Panna its main function is to collect the sound from the surrounding .

#2. Auditory Canal= the auditory Canal helps to transport the sound collected by pinna to the thin layer called ear drum

#3. auditory nerve = the electrical signals are sent to brain with the help of auditory nerves

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