human anatomy chapter 8 part 3

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1

Which type of joint in the body allows the greatest range of motion?

diarthrosis

2

Surrounding a diarthrotic joint with a joint capsule would allow a joint __________.

1. a greater range of motion
2. to have a greater level of structural support
3. to encapsulate synovial fluid

3

Which of the following does NOT help to reduce friction in a joint?

ligaments

4

Which of the following statements describes the relationship between an articulation's strength and amount of allowed movement?

The shoulder permits a wide range of motion, but it is the most likely to become dislocated.

5

The articulations (joints) of the body tend to follow a pattern of increased strength causing less motion at the joint. Which of these joints is the strongest?

the articulation between the frontal bone and a parietal bone

6

Some joints contain fat pads. What purpose do you think these fat pads serve?

They protect the articular cartilages in the joint.

7

If Alberto is standing in anatomical position and he raises his arms laterally to the level of his shoulders, he has just done what motion?

abduction

8

If Ava shrugs elevates and depresses her shoulders, what kind of motion is taking place between the clavicles and the sternum?

gliding motion

9

If you pick up your pencil, what kind of motion are you doing with your fingers and thumb?

opposition

10

When a pitcher does his wind-up motion to throw a baseball to the batter, that motion at the shoulder could be called __________.

circumduction

11

Which of the following motions can the vertebral column do?

1. flexion (bending forward)
2. extension (bending backward)
3. rotation (twisting)

12

Why is the shoulder joint a weaker joint?

It has a smaller area of contact between articulating bones.