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Kinesiology
basics of movement
12
Anatomy
Undergraduate 2
10/30/2008

Additional Anatomy Flashcards

 


 

Cards

Term
Prime Mover/Agonist
Definition
  • actually carries out action
  • causes movement of body part at joint when contracted
  • can be several different muscles working together
Term
Synergist
Definition

 

 assists prime mover

Term
Agonist
Definition

 

resists the prime mover

Term
Agonistic Pairs
Definition

as muscles can only pull, never push, there has to be a muscle that opposes the action of any given muscle.  So, muscles are sometimes found in pairs.

 

 

Term
Isometric
Definition

Static

 

Tension, but length remains same

Term
Isotonic
Definition

Dynamic

 

Tension controls or creates joint movement

Term
Concentric
Definition

Muscle develops tension as it shortens

 

(contracts-contracted muscle, concentric m

movement)

 

ie.   rectus femoris is concentric during knee extension

Term
Eccentric
Definition

Muscle lengthens under tension

 

(during elbow flexion, tricep is eccentric)

 

ie.  Soleus is is eccentric with ankle extension

Term
components of Lever System
Definition

Lever - rod, ie. bone

 

Resistance-wt to be moved, ie. barbell

 

Force-effort used to counter resistance

 

Axis (Fulcrum)-point at which lever moves, ie. joint

Term

First Class Lever

Definition

Force and Resistance on opposite sides of Axis(fulcrum)

 

Force

Axis

Resist

 

ie. 

Term
Second Class Lever
Definition

Applied force and resistance on same side of axis(fulcrum).  Resistance closer to Axis.

Force

Resistance

Axis(Fulcrum)

 

ie. 

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