Question

identify and describe a common injury associated with the musculoskeletal system and their impact on movement. analyze an injury you, or your friend, have suffered. explain how bones, muscles, tendons, and ligaments were impacted. include specific examples of movements and the muscles and joints involved. describe the typical treatment and rehabilitation process. present your findings in a google slide presentation, including diagrams and annotations. at least 3 slides in length. initial here when complete: b.1.4: levers in movement and sport b.1.4.1: three different classes of levers, both within and outside the human body, work to create movement. 23. describe the parts of a lever: fulcrum - effort - load (resistance) - 24. explain mechanical advantage (ma)? include the equation. (pg. 300)

Explanation:

1. The fulcrum is the pivot - point around which the lever rotates. The effort is the force applied to the lever to cause movement. The load (resistance) is the object or force that the lever acts upon or resists.
2. Mechanical Advantage (MA) is the ratio of the output force (load) to the input force (effort). The equation is $MA=\frac{Load}{Effort}$. It indicates how much a simple machine (like a lever) multiplies the input force.

Answer:

1. Fulcrum: Pivot - point of the lever.

Effort: Force applied to move the lever.
Load (resistance): Object or force the lever acts on.

1. Mechanical Advantage (MA) is the ratio of output force to input force. Equation: $MA = \frac{Load}{Effort}$