Which of the following is true of joints that are first-class levers?
A)Their mechanical advantage may be either greater or less than 1.0.
B)Their mechanical advantage is always less than 1.0.
C)Their output force is always greater than the input force.
D)Their resistance is between the joint (fulcrum) and the distal end of the bone (effort).
E)The joint (fulcrum) is at the opposite end from the tendinous insertion (effort).

Question

Quizplus · Accepted Answer

First-class levers have the fulcrum positioned between the effort and resistance, allowing the mechanical advantage to be either greater or less than 1.0 depending on the relative distances of the effort and resistance from the fulcrum.

Which of the Following Is True of Joints That Are