1skeletal muscel create movements by ________
pulling on tendons
2this the tendon attachment to the stationary bone; usually proximal
3the tendon attachment to the movable bone; usually distal
4this the fleshy, middle portion of the muscle between the origin and insertion
belly
5this happens when the usual origin and insertion swap roles
reverse muscle action
6what happens when the muscle crosses 2 joints?
more complex actions
7this is the rigid structure in the lever system
8this is the fixed point of the lever system
9this is the resistance in the lever system
10this is the force applied that causes the muscle to contract?
11what are the types in the lever system?
1st class, 2nd class, 3rd class
12a type of lever when the F is in the middle and the E,L is on each side
1st class lever
13a type of lever when the load is between the fulcrum and effort
2nd class lever
14the 2nd class lever is always a mechanical ___________
advantage
15a type of lever when the effort is between the fulcrum and load
3rd class lever
16the 3rd class lever is always a mechanical ___________
disadvantage