1. The ear is the sense organ that is sensitive to sound stimuli produced
by vibrating object.
2. A human ear has three main part.
i. the outer ear, filled with air.
ii. The middle ear, filled with air.
iii. The inner ear, filled with liquid 


OUTER EAR
(Pinna)
collects and directs sound waves into the ear canal.

(ear canal / auditory)
canal transmits sound waves to the eardrum.

(Eardrum)
vibrates and transmits sound waves to the ossicles.

MIDDLE EAR
(Ossicles)
intensify the vibrations of the sound waves by 22 times before transmitting to the oval
window.

(Eustachian tube)
balances the air pressure at both side of the
eardrum.

(Oval window) transmits sound vibrations from the middle
ear to the inner ear.

INNER EAR
(Cochlea)
transforms sound vibrations into impulses.

(Semicircular canals)
 balance the body position.

(auditory nerves)
send messages to the brain which interprets the messages as sound.

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Thanks for reading :)

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努尔哈尼族

Short Biodata

问候。我住在莎阿南和东姑 tunku kurshiah college. 这个博客是一所学校的项目为我的课。