Antagonist
Oppose particular movement
Prime movers
Major force
Synergist
Add force to movement and assist prime mover
Fixators
Immobilize bone maintain posture
Type of action muscle can preform depends on?
Position
Fascicles arrangement
Lever systems
Circular arrangement
Rings around openings
Convergent arrangement
Converge toward narrow tendon insertion
Parallel arrangement
Fascicles parallel to long axis
Fusiform arrangement
Spindle shaped muscles with parallel fibers
Pennate arrangement
Short fascicles attach to central tendon
Fulcrum
Pivot point/articulation
Effort
Force applied to move resistance, muscle contracting
Load
resistance moved(bone tissue any weight
First class lever
L F E
Scissors
Hyper extension of neck
Second class lever
e l f
Wheel barrow
Plantar Flexion
Third class lever
F E L
Tweezers
Flexion of forearm
Power levers
Slow
Little effort
Big load
Speed levers
Fast
More effort
Small load