the neck is a ____________. a. first class lever b. second class lever c. third class lever d. fourth class…
the neck is a ____________. a. first class lever b. second class lever c. third class lever d. fourth class lever please select the best answer from the choices provided.
Answer
Brief Explanations:
Levers are classified by fulcrum, effort, and load positions. The neck's fulcrum is at the base of the skull. Effort from posterior neck muscles acts between fulcrum and load (head weight), fitting third class lever.
Answer:
C. third class lever