Support and Locomotion

2

Human Skeleton

3

Joints 1

4

5

Joints 2

6

Major Joints of the Body

Joint Type Degrees of Freedom

Vertebrae Amphiarthroidial 3

Hip Ball-and-Socket 3

Shoulder Ball-and-Socket 3

Knee Condyloid 2

Wrist Ellipsoid 2

Metacarpophalangeal (fingers) Ellipsoid 2

Carpometacarpal (thumb) Saddle 2

Elbow Hinge 1

Radioulnar Pivot 1

Atlantoaxial Pivot 1

Ankle Hinge 1

Interphalangeal Hinge 1

7

Bone structure

8

Ossification

9

The Knee

10

The lower leg

11

Muscle structure

12

Muscle structure 2

13

Muscle structure 3

14

Actin / myosin filaments

15

Actin / myosin 2

16

Contraction 1

17

Contraction 2

18

Contraction 3

19

Contraction 4

20

Review questions

21

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