Muscle Function and Action Flashcards
1
Q
Prime Mover
A
AKA Agonist
-main muscle responsible for movement
2
Q
Fixator
A
- stabilizes a body part/holds a joint in place
- isometric contraction
3
Q
Synergist
A
- compliments prime mover
- uses concentric contraction
4
Q
Antagonist
A
- opposes action of another muscle
- eccentric contraction
5
Q
Primary Antagonist
A
-opposes prime mover
6
Q
Secondary Antagonist
A
-oppose synergists
7
Q
Flexion and Extension
A
- increase/decrease in angle between the bone or body parts
- within the Sagittal plane
- thumb: within the coronal plane
8
Q
Abduction and Adduction
A
- frontal (coronal) plane
- movements towards or away from the median plane
- fingers: toward/away from middle finger
- toes: toward/away from second toe
- thumb: in sagittal plane
9
Q
Circumduction
A
- distal end moves in a circle
- requires biaxial joint
10
Q
Medial and Lateral Rotation
A
AKA External and Internal Rotation
- movement around longitudinal axis of bone
- medial/internal toward body
- lateral/external away from body
11
Q
Supination and Pronation
A
- movements of the hand and forearm
- anatomical position=hand supinated (think bowl of soup)
12
Q
Radial and Ulnar Deviation
A
- movement of the wrist
- radial deviation=thumb away from body (Abd)
- ulnar deviation=pinky toward body (Add)
13
Q
Inversion and Eversion
A
- movements of the foot
- eversion=foot away from midline (outside of foot up)
- inversion=foot toward midline (inside of foot up)
14
Q
Dorisflexion and Plantarflexion
A
- foot and ankle
- dorsiflexion=toes up
- plantarflexion=toes down
15
Q
Elevation and Depression
A
-scapular movement up and down
