biomechanics

What are the three main components of a lever system in the human body?

• Bone, tendon, ligament

• Joint, muscle, weight

• Cartilage, nerve, blood vessel

• Origin, insertion, belly

Which type of lever has the fulcrum positioned between the effort and the load?

• First-class lever

• Second-class lever

• Third-class lever

• Fourth-class lever

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Which human body movement is an example of a second-class lever?

• Elbow flexion (bicep curl)

• Neck extension

• Plantarflexion (calf raise)

• Shoulder abduction

What makes a lever system more efficient in moving a load with less effort?

• A smaller effort arm to load arm ratio

• A larger effort arm to load arm ratio

• The effort arm and load arm being equal

• The fulcrum being closer to the effort