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Related Flashcards
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Cards In This Set
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Articulations
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Joints where two bones interconnect
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List the 4 classifications of joints.
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1. Range of motion 2. Synarthrosis 3. Amphiarthrosis 4. Diarthrosis or synovial joint
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Synarthrosis
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Immovable joints
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Type of synarthritic joints.
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Sutures, gomphosis (teeth), synchondrosis (bones tightly fused with cartilage), synostosis (bones fused with bones)
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Amphiarthrosis
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Slightly moveable (amphi - both, amphibians, slightly land and water)
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Types of amphiarthritic joints
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Syndesmosis (bones joined by ligament) and symphysis (pubic symphysis)
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Diarthrosis
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Freely moveable joints
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Type of diarthritic joint
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Synovial joint (shoulder, phalanges)
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Diarthrosis constains ________ fluid, which fills the joint.
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Synovial = Synovial joint is a type of diarthritic joint, so diarthrosis contains synovial fluid
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Excess synovial fluid is calls what?
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Water on the knee
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Three types of "axial" diarthritic joints
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Monaxial, biaxial, triaxial - mon, bi, and tri describe the number of planes they move on
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Synovial fluid
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Resembles interstitial fluid, thick, viscous solution
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Functions of synovial fluid
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Lubrication, nutrient distribution, shock absorption
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Accessory structures of joint
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Meniscus, fat pads, ligaments, tendons
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Factors that stabilize joints (discussion question)
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The greater the range of motion of a joint, the weaker it becomes; Strongest joints permit no movement
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