Accessory Joint Motions Flashcards
1
Q
What is the Motion that Occurs at Joint Surfaces Called?
A
Arthrokinematics
2
Q
What is a Glide/Slide?
A
A Linear Motion of one surface sliding over another.
3
Q
What is a Roll?
A
Rotary motion similar to a tire rolling over a road.
4
Q
What is a Spin?
A
A rotary motion around a fixed point or axis
5
Q
What is the Concave-on-Convex Rule?
A
If the concave joint surface is moving the gliding component occurs in the same direction as the rolling component
Roll-Slide Same
6
Q
What is the Convex-on-Concave Rule?
A
Gliding component occurs in the opposite direction of the rolling component.
Roll-Slide Opposite
