Exam 2: Quiz 2 Flashcards
Sagittal plane divides
R and L
Frontal (coronal) plane divides
A and P
Transverse plane divides
S and I
Translation
Movement in straight line ALONG an axis
Rotation
Movement AROUND an axis
Curvilinear motion AKA
Coupled movement
Coupled movement combines
Rotation and translation
Most common motion in the body
Coupled motion
Potential exists for each joint to exhibit
3 translational and 3 rotational movements
6 degrees of freedom
X-axis is at the junction of
Coronal and transverse planes
Y-axis is at the junction of
Coronal and sagittal planes
Z-axis is at junction of
Sagittal and transverse planes
X-axis is always
Horziontal
Y-axis is always
Vertical
Z-axis is always
Perpendicular to X (front to back)
X-axis positive and negative translation
\+ = to left - = to right
Y-axis positive and negative translation
\+ = superior - = inferior
Z-axis positive and negative translation
\+ = anterior - = posterior
Lateral glide: R to L describes _____ translation
Positive X
Lateral glide: L to R describes _____ translation
Negative X
Distraction (I to S) describes ____ translation
Positive Y
Compression (S to I) describes ____ translation
Negative Y
P-A glide AKA
Anterolisthesis
P-A glide describes ____ translation
Positive Z
A-P glide AKA
Retrolisthesis
A-P glide describes ___ translation
Negative Z
Flexion describes
Positive thetaX
Extension describes
Negative thetaX
Left axial rotation describes
Positive thetaY
Right axial rotation describes
Negative thetaY
Right lateral flexion describes
Positive thetaZ
Left lateral flexion describes
Negative thetaZ
In extremities flexion can be
Positive or negative thetaX
Extension in an extremity can be
Positive or negative thetaX
Flexion/extension plane of movement
Sagittal
Adduction/abduction plane of movement
Frontal
Rotation plane of movement
Transverse
Adduction/abduction and rotation axes of rotation are
Side dependent
Vertebral movement: anterior translation is coupled with
Flexion (positive thetaX)
The āPā stands for ____ movement
(-) Z translation
Body left/spinous right involves ____ rotation
(+) thetaY
Right superior wedging involves ____ rotation
(-) thetaZ
Left inferior wedging
(-) thetaZ
Right inferior wedging
(+) thetaZ
Left superior wedging
(+) thetaZ
Body right rotation
(-) thetaY
