Introduction The knee is one of the largest and most complex joints in the body. The knee joins the femur to the tibia. The smaller bone that runs alongside the tibia is the fibula. The patella‚ also known as the knee-cap‚ is another one that makes up the knee joint. I decided to discuss this joint structure because of reoccurring knee injuries. The Knee Joint The knee joint is formed by the articulation of the distal end of the femur and the proximal end of the tibia. The fibula
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Intro Background One of the most common injuries to the knee involves the anterior cruciate ligament; also known as the ACL. The knee is set up as a central point where three bones meet together forming the knee itself. These bones are the femur (thigh bone)‚ shinbone (tibia) and the kneecap (patella). All of which are connected to other bones by ligaments. The four primary ligaments in the knee are the LCL (lateral collateral ligament)‚ PCL (posterior cruciate ligament)‚ MCL (medial collateral
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or misinterpreted‚ Neumann (2012) chooses to examine the convex-concave rule as applied to studies performed on the arthrokinematics of abduction of the glenohumeral joint (GH). The convex – concave rule states that during typical joint motion‚ a moving bone turns around a stable bone. The non-moving bone provides stabilizing joint surface for moving bone (Foster 2013‚ p. 59). In reference to the arthokinematics of abduction of the GH‚ “the convex humeral head rolls superior relative to the glenoid
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to be confused with an acquisition‚ a Greenfield venture is a strategy in which a parent company enters into a new market without the involvement of another business or partner. This popular strategy entails a company leasing or purchasing land‚ building a new facility‚ employing or relocating managers and employees‚ and then independently launching a new operation where none has existed before. Basically‚ the operations within a Greenfield venture are done from the ground up. As of today‚
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important stabilizer of the tibiofemoral joint. The ACL has a proximal attachment on the posteromedial portion of the lateral condyle of the femur and creates an anterior medial vector to reach its distal attachment at the anteromedial tibia. The anteromedial vector the ACL makes allows it to prevent primarily anterior translation of the tibia on the femur and secondarily tibial rotation subluxation on the femur and both valgus and varus forces at the tibiofemoral joint. In the United States‚ there are 200
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Radiologic case study A male patient of approximate mid 50’s in age went to the doctor with severe tenderness‚ swelling and pain in his left knee after falling down stairs and twisting his knee. The doctor found there was noticable swelling. An MRI (magnetic resonance imaging) showed the back side corner of the knee to be intact but also did show thickening of the ligament located on the outer side of the knee. The MRI shows an oval abnormality that ran alongside of the ligament. However‚ MRI
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BALL-AND-SOCKET JOINT 1 The Ball-and-Socket Joint HCS/230 January 10‚ 2011 Dr. Mike Liang THE BALL-AND-SOCKET JOINT 2 The Ball-and-Socket Joint Joints are essential in allowing movement of the human body. They are located at the intersection of bones‚ and their structures determine the type of movement that will occur at that location. Each joint contains components
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Osgood–Schlatter disease or syndrome (also known as tibial tubercle apophyseal traction injury) is an irritation of the patellar ligament at the tibial tuberosity. Sinding–Larsen–Johansson syndrome is an analogous condition involving the patellar tendon and the lower margin of the patella bone‚ instead of the upper margin of the tibia. The condition occurs in active boys and girls aged 9–16 coinciding with periods of growth spurts. It occurs more frequently in boys than in girls‚ with reports of
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is on the back of the thigh which bends the knee. Gastronomies are the calf muscle which lifts the heel and straightens the ankle. Latissimus dorsi is a large muscle on either side of the spine which supports the spine and stabilises the shoulder joint. Trapezius is the muscles on the spine which also raise the shoulder girdle. Biceps is the muscle which bends the elbow. Triceps is the muscle which straightens the elbow. Deltoid forms the curve of the
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metacarpal of the thumb and the other part inserting on the falciform bone‚ the tendon to the falciform bone is the larger of the two. Between the dorsal surface of the falciform bone and the palmar surface of scapholunate‚ there is an arthrodial joint. The falciform is connected to the styliform cartilage on the opposite side of the wrist by a
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