What is the difference between the study of kinematics and kinetics in regard to forces?
What three components that make up the musculoskeletal âsystemâ.
The musculoskeletal system is composed if many simple machines. There are 4 potential uses for these simple machines, list 2 of these uses.
Fill in the blank a _________ is used to alter the resulting direction of the applied force.
In the body what component acts as a lever and what acts as the axis?
When we think of a lever set up, what does FAR refer to?
Draw a basic F.A.R for each of the following and give an example of where in the body you may find each.
First class lever:
Second class lever:
Third class lever:
Which class of levers is designed best for speed and range of motion and which is best for strength?
What forces determine amount of torque in a system?
A. How much torque needs to be produced to move 60 kg (R) when the RA is 0.30 m and the FA is 0.1 meters?
b. What value could you change to decrease the torque needed to lift the SAME object.
c. Draw the F.A.R unit (say an arm lifting a bucket) label the elements and explain why what you changed in b would decrease torque needed.
12. a. What is the âcontractileâ unit of muscle called? ______________
b. what is the non-contractile element (series elastic element) in a muscle lever system?
13. in regards to âpowerâ which is more powerful, muscle fibers arranged in Parallel or bipennate muscles? ___________
Why?
14. When weight lifting with the goal of increasing strength, what physical characteristic of the muscle are you changing to bring about that increased strength? __________________
15. What is the branch of FDA that controls regulation of medical devices? ____________
16. Which of the following statements is false?
A device can be an instrument or an apparatus.
A device can be something used to diagnose a disease
A device can change the chemistry of your cells
A device can be something that delivers a drug to your body
17. Give one example of a..
Class I device
Class II device
Class III device
18. Which of the following is true regarding device classification?
Devices with the least risk to the patient are considered Class III
A class III device has a high risk potential to the patient
Class III devices are the easiest to get approved
Testing devices on humans is easy and follows no specific guidelines
19. Explain the difference between Harm and Risk.
20. What is a âsubstantial equivalentâ? Is it easier or harder to get approval for a Device that has an SE?
21. Which of the following would not be a priority when developing a medical device?
Cost
Ergonomics
Ease of sterilization
Material
None of the above
