coordinate system

Question 1

• combination of rotational and translational movements, mc prod by body
• aka coupled

Answer 1

curvilinear motion

Question 2

an origin and two or three orthogonal axes, each passing thru the origin and defining one spatial dimention

Answer 2

cartesian coordinate system

Question 3

• ____ coordinate system means its coordinate surfaces meet at right angles to one another
• can be 2D or 3D

Answer 3

orthogonal

Question 4

the three axes of motion are each formed by the

Answer 4

junction of 2 planes

Question 5

the potential exists for each jt to exhibit __ translational movements and __ rotational movements, constituting __ degrees of freedom

Answer 5

3
3
6

Question 6

movements take place ___ and ___ the axis

Answer 6

along (translational)

around (rotational)

Question 7

axis formed by the jxn of the coronal and transverse planes

Answer 7

x (always horizontal)

Question 8

axis formed by jxn of coronal and sagittal planes

Answer 8

y (always vertical)

Question 9

axis formed by jxn of sagittal and transverse planes

Answer 9

z (perpendicular to x)

Question 10

in the posterior/anterior listing system the ___ axis is involved, as is ___ movement

Answer 10

z

translational

Question 11

for a P-A misalignment, your CORRECTION would be (axis & movement)

Answer 11

(+) Z axis translation

Question 12

for a body left/spinous right (eg), the involved axis and movement type would be

1) of the segment
2) to adjust it

Answer 12

1) (+) theta Y rotation

2) (-) theta Y rotation

Question 13

for a PRS (eg) implying “right sided wedging”

1) of the segment
2) to adjust it

Answer 13

1) (-) theta Z rotation

2) (+) theta Z rotation

Question 14

a P listing would have ___ descriptions in the orthogonal system, which are:

Answer 14

2
(-) Z trans
(-) theta X

Question 15

a PR listing would have __ descriptions, which are:

Answer 15

3
(-) Z trans
(-) theta X
(+) theta Y

Question 16

a PRS listing would have _ descriptions, which are:

Answer 16

4
(-) S trans
(-) theta X
(+) theta Y
(-) theta Z