Center of Gravity (COG) is generally a term that describes a point within the body where all of the mass can be said to reside.

Which of the following is a term that describes a point within a weight bearing segment about which all of the pressure is equally distributed?

In a closed kinetic chain movement the motion of the joints in the chain are dependent on each other and the distal end of the limb can move about freely in space.

When dealing with an open kinetic chain, the distal end of the limb is free to move through space.

In what direction of the material does a compression occur?

What is the type of stress (internal force) that relates to the ability of muscle tissues?

Which stress occurs when molecules are sliding past each other in opposite directions?

The force and angle pennation will be at the same degree of angle?

How can force and angle of pennation be referenced?

A system is comprised of only the segments on either side of a joint

Ankle flexion/extension occurs in the _______ plane around the _____ axis

Hip AB/ADduction occurs in the ______ plane around the _____ axis

Shoulder internal/external rotation occurs in the _____ plane around the ____ axis

_____ motion occurs in the sagittal plane

Motion in the transverse plane occurs around what axis of rotation?

What occurs during cyclic loading?

What does connective tissue tend to do in response to cyclic loading?

A tennis player exerts an average Horizontal force of 240N on a tennis ball with a mass of 6 grams through a linear displacement of .5m until the ball comes off of the racket. How much work was applied to the tennis ball?

How much work was applied to the tennis ball?

Which Irregular Connective Tissue had a large amount of ground substance?

This Irregular Connective tissue is found in bone marrow, skeletal tissue, and around organs, subcutaneous?

What type of Irregular Connective is within/lines the walls of tubular structures of the circulatory and respiratory system?

Which of the 4 types of Irregular Connective Tissue are stiff?

Elastin can take around 10% strain and return back to original form.

Collagen is organized in a parallel orientation of taught fibers.

Ground substance is responsible for holding the water and the cells that support the system.

Elastin, Collagen, Ground Substance, and Adipose are all forms of ordinary CT

At what point on a stress/strain curve does a material go from elastic to plastic?

On a stress/strain curve, the steeper the slope means the material....

The maximum amount of strain a material can tolerate before it cannot return to original structure is reached at ____?

At what stage is bone the most strain tolerant?

What population does curve #3 represent?

Resilience is the elasticity of a material between it’s baseline and ultimate strength point.

Which letter on the plot represents Resilience?

Which class lever has a higher mechanical advantage among 2nd and 3rd?

Compared to the bone of a healthy adult, which of the following is true:

Compared to cortical bone, trabecular bone will...(check all that apply)

Up to what percent strain can elastin tolerate?

The mechanical properties of a ____ determine amount of resistance to stretch and amount of elastic force transferred to bone

Which would ideally yield the greatest torque?

A greater internal tension will yield a ____ torque, while a lesser internal tension will yield a ____ torque

Which of the following angles of knee flexion is most likely to generate the highest torque

Is the angular displacement of the racket positive or negative?

Using the normal or centripetal acceleration equation,

what needs to be changed mechanically to maintain the centripetal acceleration if the radius is increased? (check all that apply)

Which class of lever has EMA>IMA?

Which class of lever is this?1

THE MUSCULAR FORCE COMPONENT OF A SYSTEM HAS THE MECHANICAL ADVANTAGE FOR WHICH CLASS LEVER?

MUSCLES EXERT LESS FORCE IN 3RD CLASS LEVER SYSTEMS BECAUSE THE EMA<IMA.

SECOND CLASS LEVER SYSTEMS ALLOW US TO TOLERATE HIGH LOADS.

What occurs during cyclic loading?

All of the following describe regular collagenous except:

What is the most abundant type of cartilage?

A tendon is a regular collagenous tissue with high linear strength, low strain tolerance and would be found connecting bone to bone.

Which of the following does NOT decrease as a result of the effects of aging on bone?

Compressive strength decreases as a result of regular use?

By what percent per week will bone density decrease in a patient assigned to bed rest?

What type of load has tension on the convex side and compression on the concave side?

Material properties are altered by: (check all that apply)

Anatomical cross section is the greatest cross-section of the muscle that contains the most muscle fibers arranged in parallel

Different orientations allow different muscular effects; some produce more force for a given volume of muscle

Do ligaments have low or high vascularity?

Do ligaments recruit fibers gradually or quickly?

Which circumstance would be more likely to damage a ligament in the knee:

Linear Strain occurs as the result of the change in an object’s original length due to compressive or tensile stresses.

What is expressed as a percent of original length as the result of compression or tension stress

Force/cross sectional area=

Joint reaction forces are equal but not opposite forces that exist between adjacent bones at a joint caused by the weight and inertial force of the two segments

Which of the following are considered bone-on-bone forces (check all that apply)

Reaction forces between segments are usually what type of forces?

For sarcomeres, which of the following describes an optimal length-strength relationship?

Which of the following statements is FALSE?

If we know the applied force and the cross sectional area what can we calculate

If we know the original length and the final length what can we calculate

Muscle fibers that are arranged in ____ do not have an efficient arrangement to have a lot of fibers in their physiological cross-sectional area

The ___________ the muscle the muscle, the ____________ the arc of motion.

A muscle with a small physiological cross section will not generate a large contractile force.

What does this graph represent?

A viscoelastic material has the following properties (check all that apply)

Which of the following is a benefit of biological materials that allow our bodies to respond to a wide variety of mechanical demands, to remodel an adaptation to repetitive demands, and to repair after excessive demands?