KNES 210 Lecture Notes - Lecture 4: Bone Density, Synovial Fluid, Synovial Membrane
13 Nov 2016
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Shape: long (humerus, femur), short (fingers), flat (pelvic girdle), irregular (vertebrae, femur is longest bone in body, smallest is in ear. Wolff"s law: bone is capable of adjusting its strength in proportion to the (cid:498)form follows function(cid:499) Osteoporotic bone prone to fracture, very brittle. Increase in bone density: decreases risk of osteoporosis density. Will increase up until 20, but after, will decrease about 1% a year. Women will experience a faster loss when going through menopause higher risk for osteoporosis. Women will show accelerated loss after 50. Anatomy: synovial membrane lines joint capsule. Secreted in response to movement: ligaments connects the bones, provide stability, tendons attach the muscle to the bone. Strong connective tissue that connect muscle to bone: ends of the bones are covered by articular (hyaline) cartilage. Serves to cushion and reduce friction in joints. Exercise applications: warm-up, avoid exercises that overstretch ligaments. Will stop the stability of muscles and movements.
