Joint Facts:

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Joint Facts:
 There are _______ + joints
 Approximately 230 ____________ and semi-movable joints
 ______________ span joints, crossing from 1 bone to another
 When muscles ___________, they tug on the bones, producing
__________________ _____ ______ _____________.
Cartilage
There are three types:
1.
2.
3.
Hyaline cartilage:
 Covers the ends of bones

 Key to
Ligaments
Ligaments  Bands of tough, fibrous collagen and stretchy elastin


 Also support organs, such as the liver and bladder
Tendons
Tendons –

 Also help stabilize joints
Types of Joints: (make sure to fill in an example(s) )







Immovable - cranium
Hinge – elbow, knee, jaw
Pivot – head/neck, elbow
Ellipsoidal - hand/wrist, foot/ankle
Ball and socket – shoulder, hip
Saddle – knuckles, thumb, wrist
Gliding – hand, foot
Structures of Joints:
 ________________ join with other connective tissue to form a joint capsule,
enclosing the moveable joint
 The joint capsule is lined with a membrane that secretes _____________
_____________, which acts as a lubricating substance
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