2. Progress in Prosthetic dev: 

 Medicine: 

+ helpful to many people

+ surgery: 

-  take the place of the missing body parts. 

+ think abt diferent movements you can accomplish: 

- Eg: picking up a cup of coffee => brain transmits signal 2 nerves => muscles move. 

- Reality: No connection brain, control by: wear dev + move back muscles & chest or chin. 

- Amanda Kitts:

lost left arm

Now have prosthetic arm - control by thoughts

Some people use term bionics to talk abt this development

How dev works: surgery: targeted renno, dev by dr Todd Coogan & Gregory => reassign nerves => reconnect them to chest & shoulder muscles -> electrodes attached to skin pick up elec sig connected to electrodes on top pros arm  => small motor makes arm bend, open & close. 

Image of missing arms in head => when move hand, thought causes mov in corresponding part of pros dev

300,000 pp have cochlear implants, internal dev. How works: 

+ internal: Transfer sound signals to auditory nerves => brain 

+ external: microphone.

Several pp have reinnervation surgery: next research step: prosthetic limbs send in4 back to the nerve => allow patients to feel hot, cool, smooth or rough surface. 

- Internal : transmits sound signals to the auditory nerve to the brain.

- External p: able to be seen outside the ear is a microphone that picks up sounds.
3. Nerves are reassigned to make different muscles move.
4. Electrodes on her skin communicate with electrodes at the top of the prosthetic arm. The electrodes pick up signals from muscles.

- Internal part: transmits sound signals directly to the auditory nerve to the brain

- External part: able to be seen outside the ear is a microphone that picks up sounds
3. Nerves are reassigned to make different muscles move
4.  Electrodes on Amanda's skin communicate with electrodes at the top of the prosthetic arm and they pick up signals from muscles

- By moving the muscles in the chest and back. 

2. What other kind of prosthetic device is mentioned, and what does it do? 

- The cochlear implant and it allows a deaf person to hear. 

3. How is the body modified in targeted reinnervation surgery? 

- Nerves are reassigned to make different muscles move.

4. How Kitt's muscles make the prothetic arms move:

- Electrodes on Amanda Kitts’ skin communicate with electrodes at the top of the prosthetic arm. The electrodes pick up signals from muscles.

2. 

- The cochlear implant. 

- It allows a deaf person to hear. 

- Internal part: transmits sound signals directly to the auditory nerve to the brain.

- External part: able to be seen outside the ear is a microphone that picks up sounds.

3.  Nerves are reassigned to make different muscles move.

4. 

- Electrodes on Amanda Kitts’ skin communicate with electrodes at the top of the prosthetic arm. The electrodes pick up signals from muscles.

1. The muscles in the chest and back were used to operate older prosthetic arms.

2. 

The cochlear implant is a device that allows deaf people to hear.

- Internal part: transmits sound signals directly to the nervous system via the auditory nerve.

- External part: a microphone that gathers up noises can be seen outside the ear.

3. 

To move different muscles, nerves are reassigned. 

4. 

Amanda Kitts' skin has electrodes that communicate with electrodes on the prosthetic arm's top. Muscle signals are picked up by the electrodes.

2. More than 300.000 people. 

3. Doctors locate and attach nerves to muscles in the chest and shoulder. 

4. Kitt's muscles make the prosthetic arm move by sending signals to the skin's surface which can be used to operate a prosthetic device. 

5. She thinks about moving her arm or hand; the thought causes movement in the prosthetic device.

2. More than 300.000 people. 

3.  locate and attach nerves to muscles in the chest and shoulder. 

4. by sending signals to the skin's surface which can be used to operate a prosthetic device. 

5. She thinks about moving her arm or hand; the thought causes movement in the prosthetic device.

1. She was in a vehicle accident and lost most of her left arm. 

2. More than 300.000 people. 

3. Doctors detect and connect nerves in the chest and shoulder muscles.

4. Kitt's muscles control the prosthetic arm by transmitting impulses to the skin's surface, which can be used to control a device. 

5. She imagines moving her arm or hand, which causes the prosthetic device to move.

- She lost most of her left arm in a car accident. 

2. Number of people with cochlear implants: 

- More than 300.000 people. 

3. What doctors do in targeted reinnervation surgery: 

- Doctors locate and attach nerves to muscles in the chest and shoulder. 

4. How Kitts's muscles make the prosthetic arm move: 

- Kitt's muscles make the prosthetic arm move by sending signals to the skin's surface which can be used to operate a prosthetic device. 

5. The role Kitts's brain plays in moving the prosthetic arm: 

- She thinks about moving her arm or hand; the thought causes movement in the prosthetic device.

 4. by sending signals to the skin's surface that can be used to operate a prosthetic device. 

5. her thought causes movement in the prosthetic device.