Coordinate Systems Flashcards

1
Q

Divides: Right and Left

A

Sagittal Plane

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2
Q

Divides: Anterior-Posterior

A

Frontal (Corona) Plane

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3
Q

Divides: Superior-Posterior

A

Transverse Plane

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4
Q

Cartesian coordinate system is aka (2)

A

Orthogonal or Rectangular coordinate system

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5
Q

Orthogonal coordinate system means what?

A

Its coordinating surfaces meet at right angles to another.

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6
Q

What are the 3 axes of motion?

A

x, y, and z

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7
Q

How are the 3 axes of motion formed?

A

By the junction of 2 planes

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8
Q

The movement in a STRAIGHT LINE ALONG and axis.

A

translation

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9
Q

Movement occurs AROUND and axis.

A

rotation

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10
Q

What is the most common motion in the body?

A

Coupled movment

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11
Q

Coupled movement aka?

A

Curvilinear motion

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12
Q

Coupled motion combines what two movements?

A

Rotation and translation

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13
Q

How many “degrees of freedom” are there?

A

6

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14
Q

The potential exists for each joint to exhibit _______ movements and ________ rotational movements.

A

3 translational

3 rotational

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15
Q

The x-axis is the junction of what two planes?

A

Coronal and transverse

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16
Q

The Y-axis is the junction of what two planes?

A

Coronal and sagittal

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17
Q

The Z-axis is the junction of what two planes?

A

Sagittal and transverse

18
Q

Always horizontal side to side - axis?

19
Q

Always vertical - axis?

20
Q

Perpendicular to X, front to back - axis?

21
Q

X-axis translation: + is towards _____, - is towards ______.

A

Left,

right

22
Q

Y-axis translation: + is towards ____. = towards ____.

A

Superior

Inferior

23
Q

Z-axis translation: + toward _____. - toward _____.

A

Anterior

posterior

24
Q

Lateral glide right to left is what kind of translation?

A

Positive X translation

25
Lateral glide left to right is what kind of translation?
Negative X translation
26
Distraction is what motion? What kind of translation?
Inferior to superior. | Positive Y translation.
27
Compression is what motion? What kind of translation?
Superior to inferior. | Negative Y translation.
28
P-A glide is aka?
anterolisthesis
29
A-P glide is aka?
retrolisthesis
30
Anterolisthesis is what kind of translation?
Positive Z translation
31
Retrolisthesis is what kind of translation?
Negative Z translation
32
3-D Cartesian coordinate system Rotation aka?
"right handed system"
33
Flexion of spine is what kind of rotation?
Positive theta X
34
Extension of spine is what kind of rotation?
Negative theta X
35
Left axial rotation is what kind of rotation?
Positive theta Y
36
Right axial rotation is what kind of rotation?
Negative theta Y
37
Right lateral flexion is what kind of rotation?
Positive theta Z
38
Left lateral flexion is what kind of rotation?
Negative theta Z
39
Two motions coupled at once is called what?
Coupled motion
40
What are the coupled motions of vertebral motion?
``` Anterior translation (positive Z axis) Flexion (positive theta X) ```