Skeletal/Muscular System Exploring the Knee Joint
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Transcript of Skeletal/Muscular System Exploring the Knee Joint
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Skeletal/Muscular SystemExploring the Knee Joint
Lindsay CammOctober 31, 2007
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WHO-DEY?!How did Carson Palmer’s knee
injury impact his life?
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Articulations
• Dictionary definition: a joint in the body; a point of contact between two or more bones
• Examples: ankle, knee, hip, shoulder, elbow, carpal, vertebral
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Synovial Joints(freely moveable joints like the knee)
• 7 structures:1. Joint Capsule: connective
tissue connecting bones on the outside
2. Synovial Membrane: moist, slippery membrane lining the inner surface of the joint capsule (lubricates and nourishes surfaces)
3. Articular Cartilage: connective tissue covering joint surfaces of the bones
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Synovial Joints Continued...
4. Joint Cavity: small space between bones allowing movement
5. Menisci: pads of cartilage located between the ends of bones which help prevent bones from grinding
6. Ligaments: strong cords of dense, white fibrous tissue connecting bones
7. Bursae: closed pillow-like structures filled with synovial fluid to cushion
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Knee Joint
• AKA-tibiofemoral joint
• uniaxial, hinge joint• largest in the body • main weight
bearing joint• very prone to injury
because it is unprotected by surrounding muscle
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Latin Prefixes
• ante- (anterior): in front of• post- (posterior): behind• med- (medial): middle• lat- (lateral): side• cruc- (cruciate): cross• trans- (transverse): across
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http://www.youtube.com/watch?v=uuoj_HFG5Z0