Fergalicious, DEFINITION, make the boys go loco
The study of human movement
Kinesiology
One point on the convex member of a joint contacting multiple points on the concave member of the joint describes which component motion?
Slide
Where is the axis located in a first class lever system?
In between the internal and external forces
List the two active components of muscle
Actin and myosin
This term describes how much sound is reflected back to the probe and determines whether a tissue appears bright or dark
Echogenicity
The perpendicular distance between the axis of rotation and the force
Moment Arm
Name the direction of the roll and slide for distal end free knee extension
Anterior roll and anterior slide of the tibia on the femur
Where is the external force located in a second class lever system?
In between the axis and the internal force
When does a muscle produce a maximal amount of passive tension?
When it is maximally lengthened
Ultrasound cannot visualize these structures because sound cannot pass through them
Bone and air-filled organs
When all points on a rigid body move in the same direction and distance
Linear (translatory) motion
Name the direction of the roll and slide for distal end fixed knee flexion
Posterior roll and anterior slide of the femur on the tibia
Where is the internal force located in a third class lever system?
In between the axis and the external force
What is the single greatest factor in determining the force production capability of a muscle?
Its cross-sectional area
Ultrasound can image these soft tissues better than MRI because internal fibers are visible
Tendons
The rotary equivalent of a force
Torque
One point on the convex member of the joint contacting one point on the concave member of the joint describes which component motion?
Spin
A standing calf raise utilizes which class of lever?
Second class
Identify the position of the hip and knee in which the rectus femoris may be experiencing active insufficiency
Maximal hip flexion and knee extension
This sonogram plane shows a cross-sectional image of a muscle or tendon
Short-axis sonogram
The tendency of a material to deform progressively when subjected to a constant load
Creep
Name the direction of the roll and slide for distal end fixed hip flexion
Anterior roll and anterior slide of the acetabulum on the femur
A distal end free knee extension (LAQ) utilizes which class of lever?
Third class lever
Identify the position of the hip and knee in which the hamstrings may experience passive insufficiency
Hip flexion and knee extension
Tissues or interfaces that reflect a large amount of energy and show up bright on diagnostic ultrasound images are described as _________
Hyperechoic