00:01
Hello everyone, in this question we have been asked about the steps in the generation of sensory impulses from the ear.
00:12
So, basically first of all the sound waves enter into the ear.
00:19
So, when a sound occurs it enters into the outer ear that is also referred to as pinna or auricle and the pinna is the visible portion of the ear and its funnel like shape is well engineered as sound hits the pinna it filters and amplifies the sound waves and moves along with them into the ear canal.
00:47
Now, the sound waves hit the ear drum or tympanic membrane and then in the step 2 the sound moves through the middle ear.
01:00
So, here basically the sound waves are amplified before they are delivered into the inner ear.
01:08
So, the ear drum is attached to a chain of three small bones that are known as the ossicles and these three bones are the smallest bones in the body and the ear drum vibrates in response to the sound waves and these bones are set into the motion as well.
01:28
So, the last bone that is stapes is connected to oval window which is a membrane in separating the middle ear from the inner ear.
01:38
So, in the third step the sound moves through the inner ear that is basically the cochlea...