Histology test 2

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vanctate
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241230
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Histology test 2
Updated:
2013-10-17 14:26:55
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Histology t8
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histology exam 2
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  1. Synarthrosis
    • little or no mobility.
    • – Most synarthrosis joints are fibrous.
    • Synchondroses: bones are connected by a piece of cartilage.
    • Synostoses (Sutures): bones that are initially separated fuse together
  2. Amphiarthrosis
    • slight mobility.
    • – bone surfaces at the joint are covered in hyaline cartilage and joined by strands of fibrocartilage, e.g. between vertebrae.
  3. Diarthrosis
    • moveable.
    • – Allow flexion, adduction and/or pronation.
    • – Also called synovial joints.

    • • 1. Ball and Socket - such as the shoulder or the hip.
    • • 2. Hinge - such as the elbow.
    • • 3. Pivot - such as the radius and ulna.
    • • 4. Condyloid (or ellipsoidal) - such as the wrist between radius and carpals.
    • • 5. Saddle - such as the joint between carpal thumbs and metacarpals.
    • • 6. Gliding - such as between the carpals.
  4. Properties of cartilage
    • 1 Avascular
    • 2 Permeable : conducts nutrients and water
    • 3 Flexible but weight-bearing : resistance to compression
    • 4 Elasticity and resilliencey
    • 5 resistance to shear forces
    • 6 Slippery : low friction at articular joints
    • 7 Poor regenerative capacity

    • Ground substance
    •       (proteoglycans - including chondroitin and keratin sulfate - hyaluronic acid & 60-80% H2O)

    • -lacunae
    • -isogenous groups - contain multiple conrocyt

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