NURS 202 Chapter Notes - Chapter 20: Anterior Superior Iliac Spine, Posterior Superior Iliac Spine, Subacromial Bursa

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23 Nov 2016
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We need this for: support to stand erect, movement, encase and protect inner vital organs, produce rbc in bone marrow (hematopoiesis, reservoir for storage of essential minerals ca and phosphorus. Functional units = enable the mobility needed for adls. Nonsynovial joints: bones united by fibrous tissue/cartilage; immovable (sutures) or slightly movable (vertebrae) Synovial joints: freely movable bones separated from and enclosed in joint cavity filled w/ lubricant (synovial fluid. Like grease on gears allows sliding of opposing surfaces enabling movement. Layer of resilient cartilage covers the surface of opposing bones here. Cartilage: avascular; gets nutrient from synovial fluid that circulates when joint move. Cushions bone and provide smooth surface to facilitate movement. -each joint is surrounded by a fibrous capsule supported by ligament. Ligaments: fibrous bands running directly from a bone to another; strengthen joint & help prevent movement in undesirable directions. Bursa: enclosed sac filled w/ viscous synovial fluid, like a joint.

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