Movement Flashcards
1
Q
Extensors & Flexors
A
Lengthen or contract muscles, Opener and closer
Work in opposition (elbow: contract biceps, lengthen triceps)
2
Q
Agonists & Antagonists
A
Muscles that move a joint in the intended direction vs that oppose the direction/
Skilled movements of high speed are started by agonists and stopped by antagonists.
3
Q
Muscle
A
thousands of individual muscle fibers each controlled by an alpha motor neuron (few to 100+), make up a motor unit that link the brain and muscles.
4
Q
Knee Reflex
A
