Question 1

Which of the following terms describes the straightening of a joint, rather than the bending?A.flexionB.hyperextensionC.extensionD.none of the above

Accepted Answer

C. extension

Question 2

Which of the following statements BEST explains why ball-and-socket joints have the greatest range of motion?A.The contours of the two bones allow for maximum movement.B.The even planes of the bones allow full rotation.C.The two matching surfaces allow for movement in multiple directions.D.The cup shape of the socket allows for nearly circular motion.

Accepted Answer

D. The cup shape of the socket allows for nearly circular motion.

Question 3

Why does range of motion need to be measured separately for each joint?A.The average ranges of motion of joints are not known.B.Each joint has a different range of motion.C.Range of motion can change rapidly in a joint.D.none of the above

Accepted Answer

B. Each joint has a different range of motion.

Question 4

The center of gravity does not contribute to individual stability.

Accepted Answer

False

Question 5

Which of the following statements about stability is NOT true?A.Skilled athletes have high levels of stability.B.Stability can be learned through practice.C.Stability is genetic and cannot be improved.D.Stability requires an awareness of your center of gravity.

Accepted Answer

C. Stability is genetic and cannot be improved.

Question 6

A condition often referred to as being double-jointed is an example of __________.A.hypermobilityB.hypomobilityC.hydromobilityD.hypnomobility

Accepted Answer

A. hypermobility

Question 7

Which of the following joints is NOT found in the hands and wrists?A.pivotB.hingeC.condyloidD.saddle

Accepted Answer

A. pivot

Question 8

The joints in the fingers are __________.A.pivot jointsB.saddle jointsC.condyloid jointsD.ball-and-socket joints

Accepted Answer

C. condyloid joints

Question 9

Why do women typically tend to have slightly greater stability than men?A.Women are shorter than men, and shorter people are more stable.B.Men have more muscle mass in their lower bodies that makes them stiff and less stable.C.Women have lower centers of gravity, and lower centers of gravity provide more stability.D.The increased muscle mass in their upper bodies makes their centers of gravity difficult to find.

Accepted Answer

C. Women have lower centers of gravity, and lower centers of gravity provide more stability.

Question 10

Which of the following describes the BEST strategy for increasing a specific joint's range of motion?A.developing a rigorous whole-body exercise programB.avoiding stretching before vigorous exerciseC.applying the principles of overload and progression to exercise the jointD.spending two hours swimming daily

Accepted Answer

C. applying the principles of overload and progression to exercise the joint

Question 11

The knee has the same kind of joint as the elbow.

Accepted Answer

true

Question 12

The thumb is the only saddle joint in the human body.

Accepted Answer

true

Question 13

Range of motion is the distance an object can travel when separated from another object.

Accepted Answer

false

Question 14

A condition often referred to as being double-jointed is an example of __________.A.hypermobilityB.hypomobilityC.hydromobilityD.hypnomobility Please select the best answer from the choices provided.

Accepted Answer

A. hypermobility

Question 15

How many types of joints are there in the human body?A.4B.2C.12D.6

Accepted Answer

D. 6

Question 16

Which of the following statements about joints is TRUE?A.Fixed joints have the greatest range of motion.B.Most joints are joined by cartilage or connective tissue.C.They are all very flexible.D.They occur where two or more bones join.

Accepted Answer

D. They occur where two or more bones join.

Question 17

A goniometer measures __________.A.a joint's maximum range of motionB.a joint's minimum range of motionC.a joint's flexionD.extension and hyperextension

Accepted Answer

A. a joint's maximum range of motion

Question 18

The carpal bones in the hands are an example of __________.A.hinge jointsB.condyloid jointsC.saddle jointsD.gliding joints

Accepted Answer

D. gliding joints

Question 19

What differentiates extension from hyperextension?A.Extension bends joints in the opposite direction as hyperextension.B.Extension straightens a joint, and hyperextension bends it but in the opposite direction from flexion.C.Hyperextension straightens a joint, and extension bends it in the opposite direction from flexion.D.Both bend joints, but extension can be damaging.

Accepted Answer

B. Extension straightens a joint, and hyperextension bends it but in the opposite direction from flexion.

Question 20

Which of the following BEST describes a body in equilibrium?A.It is standing upright.B.All forces acting on a body are balanced.C.The force of gravity has been overcome.D.No forces are acting on the body.

Accepted Answer

B

Question 21

Why are men typically less stable on their feet than women?

Accepted Answer

Women generally have a lower center of gravity than men, which contributes to greater stability. Men generally have more muscle mass in their upper arms and bodies, which raises their center of gravity and can make them less stable on their feet.

Question 22

Explain why synovial joints have greater flexibility than fixed and cartilaginous joint.

Accepted Answer

Unlike fixed joints or cartilaginous joints, where the bones are connected by either connective tissue or cartilage, the bones in synovial joints are not directly joined by anything, which allows for a much greater range of motion.

Question 23

Explain the difference between a joint's possible range of motion and its actual range of motion.

Accepted Answer

Each type of joint has a possible range of motion associated with it. This possible range of motion depends upon the type of joint it is, rather than the characteristics of the individual who possesses this joint. A joint's actual range of motion, however, is dependent upon the fitness levels of the individual. Since the possible range of motion is the theoretical maximal range of motion, the actual range of motion will always be less.

Question 24

How are balance and stability different concepts?

Accepted Answer

Balance is the ability to maintain equilibrium by neutralizing the forces that disturb it. Stability, meanwhile, is the ability to maintain balance while participating in actions that are likely to upset balance. Standing on one leg for several minutes demonstrates good balance, while playing in a vigorous soccer game without tripping or falling demonstrates good stability.

Question 25

How might being too strong actually restrict a joint's range of motion?

Accepted Answer

If excess muscle is too bulky it can interfere with the motion of a joint, which means that too much muscle strength can reduce a joint's range of motion and can actually reduce flexibility.

Question 26

Which of the following BEST explains why stability is an important skill for athletes?A.Without good stability, athletes cannot participate in sports.B.Without good stability, athletes are too clumsy to perform well.C.Good stability helps athletes improve their speed.D.Good stability helps athletes deal with their injuries.

Accepted Answer

B

Question 27

Participating in __________ can improve flexibility.A.yogaB.pilatesC.swimmingD.all of the above

Accepted Answer

D

Question 28

Hyperextension bends a joint in the opposite direction as flexion.

Accepted Answer

True

Stability And Range Of Motion: Lesson 10

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