Exam 1 Part 2 Flashcards
What are the 3 types of joint motion?
translational, rotational, and curvilinear motion
Which type of joint motion is aka coupled movement and is the most common motion produced by the body?
Curvilinear motion
Which plane divides the body into right and left? anterior and posterior? superior and inferior?
Sagittal;
Frontal (coronal);
Transverse
What are the 3 axes of the 3-D coordinate system?
X, Y, and Z
What is the other name for the Cartesian Coordinate System?
Rectangular Coordinate System
T/F: Orthogonal coordinate system means its coordinate surfaces meet at right angles to one another.
True
T/F: The Cartesian Coordinate System is always in 3 dimensions.
False; can be 2-D as well
What kind of movement takes place along an axis? around the axis?
translational;
rotational
T/F: The potential exists for each joint to exhibit three translational movements and three rotational movements, constituting 9 degrees of freedom.
False; 6 degrees of freedom
Which axis is at the junction of the sagittal and transverse planes?
Z-axis
Which axis is perpendicular to the X-axis, running from front to back?
Z-axis
T/F: Positive translation along the X-axis is towards the right.
False; towards the left
T/F: Positive translation along the Z-axis is towards the anterior.
True
T/F: Negative translation along the Y-axis is toward the inferior.
True
T/F: Lateral glide from right to left is negative X translation.
False; right to left is positive X translation
T/F: Distraction is Postive Z Translation.
False; Distraction is inferior to superior, thus Positive Y translation. Positive Z Translation is P-A glide (retrolisthesis)
A-P glide is translation along which axis?
Negative Z translation
T/F: When using the “right handed system,” one can point the thumb toward positive translation along any of the axes and flex the wrist. When flexing the wrist, whatever rotation the fingers point is negative rotation (negative theta) about the axis.
False; wrist flexion shows positive rotation (positive theta) about the axis
T/F: Flexing the neck is an example of Positive Theta X rotation.
True
T/F: Left Axial Rotation is postive theta Y rotation.
True
What type of rotation is taking place during left lateral flexion of the spine?
negative theta Z
Anterior translation and flexion of the spine together would be considered what?
coupled motion
A straight P-A adjustment would be considered what kind of movement (along what axis)?
positive Z-axis translation
T/F: a thrust delivered to the left TVP would make the vertebra move in negative theta Y rotation
True (slide 21)
T/F: Vertebral wedging is considered positive or negative theta Y rotation.
False, pos/neg theta Z rotation
T/F: A posterior spinous left (or right posterior body right) is described as positive theta Y.
False; negative theta Y
T/F: A PI listing can be described as negative Z translation and negative X translation.
False; negative Z translation and negative theta X
What orthogonal system descriptions can be used to describe a PRS listing?
neg theta Z translation, neg theta x, pos theta Y and neg theta Z
