ANY SOUND, ,playing a drum,bird song, noise of a jet plane-is simply a vibration which travel along the air waves.These sound vibrations reach an eardrum.The eardrum is attached to a bone-called hammer .This hammer passes the sound onto two more bone called anvil and stirrup.These two bones have got their name because of their shapes.These two bones transmit the sound vibration to an inner ear where these sounds are converted into electrical signals that our brain can interpret.We can differentiate between high and low volume and pitch.
Our ear not only allow us to hear ,but they also help us to keep our balance.We can also detect the direction of the sound .The one of the outer parts of the ear called Pinna, is used to find out the direction of the sound.
The smallest bone is the "stirrup",deep in the ear.It is hardly larger than grain of rice.
The ear and nose do not have bones inside them.Their inner supports are cartilage or "gristle",which is lighter and more flexible than bone.This is why nose and ear can be bent
After death ,cartilage rot faster than bone.This is why the skulls of skeletons have no ears and nose.
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Our ear not only allow us to hear ,but they also help us to keep our balance.We can also detect the direction of the sound .The one of the outer parts of the ear called Pinna, is used to find out the direction of the sound.
The smallest bone is the "stirrup",deep in the ear.It is hardly larger than grain of rice.
The ear and nose do not have bones inside them.Their inner supports are cartilage or "gristle",which is lighter and more flexible than bone.This is why nose and ear can be bent
After death ,cartilage rot faster than bone.This is why the skulls of skeletons have no ears and nose.
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