1. Why is there little to no movement in a fibrous joint?
because the bones making up the joint are united with strong fibrous tissue.
2.What is an example of a fibrous joint?
the sutures which hold together the bones of the skull
3.Describe a cartilaginous joint and give an example.
It is formed where two bones are united by inervening fibrocartilage. The vertebrae of the spinal column are joined by intervertebral discs
4.What type of joint essentially allows free movement?
Synovial joints
5.What lubricates a joint cavity?
Synovial fluid
6.For the following joint types please list the name of the joint type, the type of movement of the joint, the shape of the joint and an example.
Plane joint - gliding or sliping; slightly curved surface; carple bones in hand
Hinge joint - limited to rotation around a single axis; shaped like an irregular cylinder; elbow joint
Condylar joint - permits kinds of movement; shaped like an irregular cylinder; knee joint
Ball and Socket joint - in variety of directions; cup-shaped cavity; shoulder joint
Ellipsoidal joint - variety of directions; oval shaped; wrist joint
Pivot joint - pivot; a bony peg; elbow
Saddle joint - in a variety of directions; saddle shaped; thumb
Tuesday, April 22, 2008
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