Exam 1: Joints + Degrees of Freedom Flashcards
1
Q
compress
A
joint surfaces come together
2
Q
distract
A
surfaces pull away
3
Q
glide
A
move parallel to one another
4
Q
spin
A
axial rotation
5
Q
translation
A
movement of joint surfaces in same direction
6
Q
how many degrees of freedom does a ball-and-socket joint have
A
3
7
Q
how many degrees of freedom does an ellipsoid joint have
A
2
8
Q
how many degrees of freedom does a hinge joint have
A
1
9
Q
how many degrees of freedom does a saddle joint have
A
2
10
Q
how many degrees of freedom does a gliding joint have
A
NONE (only glides)
11
Q
how many degrees of freedom does a pivot joint have
A
1
12
Q
ex. of a ball-and-socket joint
A
shoulder
13
Q
ex. of an ellipsoid joint
A
wrist
14
Q
ex. of a hinge joint
A
elbow
15
Q
ex. of a saddle joint
A
thumb
