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The Ear Life Science Chris Petriccione

The Ear Life Science Chris Petriccione. Questions How do we hear things and understand what is being said? How do we hear things and understand what is

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Page 1: The Ear Life Science Chris Petriccione. Questions How do we hear things and understand what is being said? How do we hear things and understand what is

The EarLife ScienceChris Petriccione

Page 2: The Ear Life Science Chris Petriccione. Questions How do we hear things and understand what is being said? How do we hear things and understand what is

Questions

How do we hear things and understand what is being said?

Why are our ears on the side of our head, when rabbits have them on top of their heads?

What causes hearing loss?

Page 3: The Ear Life Science Chris Petriccione. Questions How do we hear things and understand what is being said? How do we hear things and understand what is

The Ear

There are three main parts: Outer Ear Middle Ear Inner Ear

Page 4: The Ear Life Science Chris Petriccione. Questions How do we hear things and understand what is being said? How do we hear things and understand what is

Outer Ear

The outer ear collects sound and sends it down ear canal to eardrum

Page 5: The Ear Life Science Chris Petriccione. Questions How do we hear things and understand what is being said? How do we hear things and understand what is

Middle Ear

Sound vibrations travels from ear drum to the bones of the middle ear.

Sound hits the hammer, which passes to the anvil, and finally to the stirrup, where the vibration is passed to the cochlea.

Page 6: The Ear Life Science Chris Petriccione. Questions How do we hear things and understand what is being said? How do we hear things and understand what is

Question

Why use bone as a transmitter of sound vibrations?

Page 7: The Ear Life Science Chris Petriccione. Questions How do we hear things and understand what is being said? How do we hear things and understand what is

Inner Ear

The cochlea is a fluid filled spiral, which is where the vibrations travel to the organ of Corti

The organ of Corti is a strip of tiny hairs (about 20,000) which are nerve endings that detect vibrations and send it to the brain.

Page 8: The Ear Life Science Chris Petriccione. Questions How do we hear things and understand what is being said? How do we hear things and understand what is

Sound

Travels in waves

Page 9: The Ear Life Science Chris Petriccione. Questions How do we hear things and understand what is being said? How do we hear things and understand what is

Question

Why are rabbits ears located on top of their head, whereas our ears are on the side of our head?

Page 10: The Ear Life Science Chris Petriccione. Questions How do we hear things and understand what is being said? How do we hear things and understand what is

Hearing Loss

What causes hearing loss?

Page 11: The Ear Life Science Chris Petriccione. Questions How do we hear things and understand what is being said? How do we hear things and understand what is

Balance

What does all of this have to do with balance?