Question

Justify how the main functions of the skeleton are to act as a system of rods and levers, which are moved by the muscles.

Answer 1

A lever is a rigid rod (usually a length of bone) that turns about a pivot (usually a joint). Levers can be used so that a small force can move a much bigger force. ... In our bodies bones act as lever arms, joints act as pivots, and muscles provide the effort forces to move loads.

Answer 2

Answer:

A lever is a rigid rod (usually a length of bone) that turns about a pivot (usually a joint). Levers can be used so that a small force can move a much bigger force. ... In our bodies bones act as lever arms, joints act as pivots, and muscles provide the effort forces to move loads.

Hope this will help you.....