Our calf muscles contract to cause plantar flexion, resembling the lever system of a wheelbarrow. Therefore, it is a ________ -class lever.
A) first
B) second
C) third

Question

Quizplus · Accepted Answer

In a second-class lever, the load is between the fulcrum and the effort, similar to how the calf muscles (effort) lift the body (load) with the toes acting as the fulcrum during plantar flexion.

Our Calf Muscles Contract to Cause Plantar Flexion, Resembling the Lever