human ear

hi shabeb w sabaya today we will be discussing the HUMAN EAR
guys, before explaning everyine take out sticky notes and write down what they want to learn or what they already know and stick it in the KWL chart
i know that the ear has the smallest bones
the PINNA is the visibleportion of the outer ear. It collects sound waves and channels them into the ear canal
Structure of human ear
the 3 tiny bones in the middle ear are called the ossicles. The ossicles amplify the sound. They send the sound waves to the inner ear and into the cochlea
The ear canal transports sound from the outer ear to the eardrum
sound waves that travel through the ear canal causes the ear drum to vibrate
the ear drum is the soft membrane that separates the outer ear to the inner ear
The cochlea is filled with liquid and lined with hairs . it converts the vibrations into electrical signals .
The Auditory nerve connects the cochlea to the brain . it caries the electric signals to the brain
miss ghina, what if someone loses his hearing abilities?
a hearing aid is a device that makes some sounds louder so that a person with hearing loss can listen, communicate, and participate more fully in daily activities
this is why we have hearing aids

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