choose the correct sequence of sound vibrations travelling through human ear .
a.pinna_____eardrum____ organ of hearing____auditory nerve .
b.pinna ____organ of hearing
____ eardrum_____ auditory nerve .
c. pinna _____ auditory nerve _____eardrum _____ organ of hearing .
d.pinna _____ eardrum _____auditory nerve _____ organ of hearing .
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Answers
Answer:
a is correct answer ...pls mark brainly if answer is right
Explanation:
Pathway of a Sound Wave
1. The sound waves arrive at the pinna (auricle), the only visible part of the ear.
2. Once the sound waves have passed the pinna, they move into the auditory canal (external
acoustic meatus) before hitting the tympanic membrane (eardrum).
3. Once the sound waves reach the tympanic membrane, it begins to vibrate and they enter
into the middle ear.
4. The vibrations are transmitted further into the ear via three bones (ossicles): malleus
(hammer), incus (anvil), and the stapes (stirrup). These three bones form a bridge from
the tympanic membrane to the oval window.
5. Once sound passes through the oval window, it enters into the cochlea in the inner ear.
6. Hair cells in the organ of Corti (within the cochlea) are stimulated which in turn
stimulates the cochlear branch of the vestibulocochlear nerve.
7. The cochlear nerve then transmits electrical impulses to the auditory region of the brain
in the temporal lobe.