what is your nervous system? neurons hearing & balance
TRANSCRIPT
![Page 1: What is your nervous system? Neurons HEARING & BALANCE](https://reader034.vdocuments.net/reader034/viewer/2022051417/5697bf7c1a28abf838c842a2/html5/thumbnails/1.jpg)
![Page 2: What is your nervous system? Neurons HEARING & BALANCE](https://reader034.vdocuments.net/reader034/viewer/2022051417/5697bf7c1a28abf838c842a2/html5/thumbnails/2.jpg)
What is your nervous system?
![Page 3: What is your nervous system? Neurons HEARING & BALANCE](https://reader034.vdocuments.net/reader034/viewer/2022051417/5697bf7c1a28abf838c842a2/html5/thumbnails/3.jpg)
Neurons
![Page 4: What is your nervous system? Neurons HEARING & BALANCE](https://reader034.vdocuments.net/reader034/viewer/2022051417/5697bf7c1a28abf838c842a2/html5/thumbnails/4.jpg)
HEARING & BALANCE
![Page 5: What is your nervous system? Neurons HEARING & BALANCE](https://reader034.vdocuments.net/reader034/viewer/2022051417/5697bf7c1a28abf838c842a2/html5/thumbnails/5.jpg)
Transduction Got it!!!
![Page 6: What is your nervous system? Neurons HEARING & BALANCE](https://reader034.vdocuments.net/reader034/viewer/2022051417/5697bf7c1a28abf838c842a2/html5/thumbnails/6.jpg)
Why do we call our sense of hearing and balance…..the “hairy” senses?
Hair cell
Cilia
![Page 7: What is your nervous system? Neurons HEARING & BALANCE](https://reader034.vdocuments.net/reader034/viewer/2022051417/5697bf7c1a28abf838c842a2/html5/thumbnails/7.jpg)
Where are these hair cells?
Semicircular canals
Cochlea
External Ear
Middle Ear
Inner Ear
![Page 8: What is your nervous system? Neurons HEARING & BALANCE](https://reader034.vdocuments.net/reader034/viewer/2022051417/5697bf7c1a28abf838c842a2/html5/thumbnails/8.jpg)
How do these hair cells work?
Cilia like hair moves….the cilia bend.
![Page 9: What is your nervous system? Neurons HEARING & BALANCE](https://reader034.vdocuments.net/reader034/viewer/2022051417/5697bf7c1a28abf838c842a2/html5/thumbnails/9.jpg)
When the cilia bends…..
…it pulls on the tip links.
![Page 10: What is your nervous system? Neurons HEARING & BALANCE](https://reader034.vdocuments.net/reader034/viewer/2022051417/5697bf7c1a28abf838c842a2/html5/thumbnails/10.jpg)
Pulling on the tip links…..
…opens the “door” for chemicals.
![Page 11: What is your nervous system? Neurons HEARING & BALANCE](https://reader034.vdocuments.net/reader034/viewer/2022051417/5697bf7c1a28abf838c842a2/html5/thumbnails/11.jpg)
Bending the cilia on the hair cells…
…lets the hair cells “talk” to the neurons .
![Page 12: What is your nervous system? Neurons HEARING & BALANCE](https://reader034.vdocuments.net/reader034/viewer/2022051417/5697bf7c1a28abf838c842a2/html5/thumbnails/12.jpg)
What makes the hair cells bend?
![Page 13: What is your nervous system? Neurons HEARING & BALANCE](https://reader034.vdocuments.net/reader034/viewer/2022051417/5697bf7c1a28abf838c842a2/html5/thumbnails/13.jpg)
First, let’s look at your...
…Vestibular System.
![Page 14: What is your nervous system? Neurons HEARING & BALANCE](https://reader034.vdocuments.net/reader034/viewer/2022051417/5697bf7c1a28abf838c842a2/html5/thumbnails/14.jpg)
Rotary Movement
Linear Movement
Hair cells in different places….
…give different kinds of information.
![Page 15: What is your nervous system? Neurons HEARING & BALANCE](https://reader034.vdocuments.net/reader034/viewer/2022051417/5697bf7c1a28abf838c842a2/html5/thumbnails/15.jpg)
To make the hair cells bend….
…you have to move!!!
![Page 16: What is your nervous system? Neurons HEARING & BALANCE](https://reader034.vdocuments.net/reader034/viewer/2022051417/5697bf7c1a28abf838c842a2/html5/thumbnails/16.jpg)
Moving makes the hair cells bend….
…sending info to the brain.
![Page 17: What is your nervous system? Neurons HEARING & BALANCE](https://reader034.vdocuments.net/reader034/viewer/2022051417/5697bf7c1a28abf838c842a2/html5/thumbnails/17.jpg)
BUT…only some parts of your brain…
…get info from your vestibular system.
≠≠
≠
![Page 18: What is your nervous system? Neurons HEARING & BALANCE](https://reader034.vdocuments.net/reader034/viewer/2022051417/5697bf7c1a28abf838c842a2/html5/thumbnails/18.jpg)
Next, let’s look at your...
…Auditory System.
![Page 19: What is your nervous system? Neurons HEARING & BALANCE](https://reader034.vdocuments.net/reader034/viewer/2022051417/5697bf7c1a28abf838c842a2/html5/thumbnails/19.jpg)
Molecules in the air move.
Frequency
Amplitude
![Page 20: What is your nervous system? Neurons HEARING & BALANCE](https://reader034.vdocuments.net/reader034/viewer/2022051417/5697bf7c1a28abf838c842a2/html5/thumbnails/20.jpg)
The hair cells for the auditory system...
Cochlea
…are wrapped up in a coil.
![Page 21: What is your nervous system? Neurons HEARING & BALANCE](https://reader034.vdocuments.net/reader034/viewer/2022051417/5697bf7c1a28abf838c842a2/html5/thumbnails/21.jpg)
So let’s see how it works….
http://www.youtube.com/watch?v=IGSKliPSJ7I
![Page 22: What is your nervous system? Neurons HEARING & BALANCE](https://reader034.vdocuments.net/reader034/viewer/2022051417/5697bf7c1a28abf838c842a2/html5/thumbnails/22.jpg)
So let’s see how it works….
Transduction
![Page 23: What is your nervous system? Neurons HEARING & BALANCE](https://reader034.vdocuments.net/reader034/viewer/2022051417/5697bf7c1a28abf838c842a2/html5/thumbnails/23.jpg)
The brain then gets the info…
… about the sounds.
![Page 24: What is your nervous system? Neurons HEARING & BALANCE](https://reader034.vdocuments.net/reader034/viewer/2022051417/5697bf7c1a28abf838c842a2/html5/thumbnails/24.jpg)
HEARING & BALANCE