Stability & Range of Motion Answers

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1
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Which of the following terms describes the straightening of a joint, rather than the bending?

A
flexion
B
hyperextension
C
extension
D
none of the above
2
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Participating in __________ can improve flexibility.

A
yoga
B
pilates
C
swimming
D
all of the above
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
4

Hyperextension bends a joint in the opposite direction as flexion.

A
T
B
F
5

Which type of joint allows rotation of one bone around another like when rotating the head?

A
pivot
B
hinge
C
condyloid
D
saddle
6

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.
7

The center of gravity does not contribute to individual stability.

A
T
B
F
8

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

A
T
B
F
9

The joints in the fingers are __________.

A
pivot joints
B
saddle joints
C
condyloid joints
D
ball-and-socket joints
10

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.

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