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Questions and Answers
Which lever system occurs when the load is between the effort and pivot?
Which lever system occurs when the load is between the effort and pivot?
- Second-class levers (correct)
- Third-class levers
- Fourth-class levers
- First-class levers
In a wheelbarrow, which part serves as the pivot for the second-class lever?
In a wheelbarrow, which part serves as the pivot for the second-class lever?
- The load in the trey
- The person's force
- The handles
- The wheel (correct)
What is an example of a first-class lever in the human body?
What is an example of a first-class lever in the human body?
- Sweeping with a broom
- Bending the neck backwards (correct)
- Standing on tip toes
- Bending the elbow
Which muscle provides the force needed for neck extension in the first-class lever of the atlanto-occipital joint?
Which muscle provides the force needed for neck extension in the first-class lever of the atlanto-occipital joint?
What is the movement known as when a person stands on their tip toes in a second-class lever system?
What is the movement known as when a person stands on their tip toes in a second-class lever system?
What is the primary purpose or function of a lever system in the human body?
What is the primary purpose or function of a lever system in the human body?
What are the four primary parts that make up a lever system in the body?
What are the four primary parts that make up a lever system in the body?
In the example of a person lifting a cup of water to their mouth, what acts as the lever?
In the example of a person lifting a cup of water to their mouth, what acts as the lever?
What is the term used to describe the force generated by the contraction of the muscles in a lever system?
What is the term used to describe the force generated by the contraction of the muscles in a lever system?
How many primary types of levers are there in the human body?
How many primary types of levers are there in the human body?
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