Page 1 of 21 - About 210 Essays
  • Creationism Vs Evolution Essay

    looked like a hippo rib sticking up in the sand. It came loose and revealed itself, not as a hippo rib, but as a proximal tibia-the upper end of the shin bone- of a small primate.” A few yards away Johanson spotted another bone the “distilled femur--- the lower end of a thigh bone, that was split up the middle so that only one of its condyles that fitted into the shinbone was attached.” The missing, detached condyle was found a few more yards. When Johanson pieced all the bones together, they formed a perfect knee joint. Upon further analysis of the newly discovered knee joint Johanson “realized that he joined the femur and the tibia at an angle. I (Johanson) had not done it deliberately. They had gone together that way naturally; that was the way they had to go.” The angle at which the knee joint locks were crucial in deciphering whether the fossil was humanlike or an apelike by establishing its bipedal or quadrupedal ability. Apes are quadrupeds that utilized a form of locomotion called knuckle-walking, during locomotion the knee joint of an ape lock and in turn the tibia and the femur are joined together to form a straight line. On the other hand, humans are bipedal and during locomotion when the knee joint locks, the tibia and femur join to form an angle slanting away from the knee. This outward slanting angle is exclusive to only bipedal walkers. The knee joint fossil Johanson found to have the similar outward slant found in only bipedal walkers (particularly…

    Words: 2254 - Pages: 10
  • Snapping Hip Syndrome Essay

    of standing upright. Humans naturally stand with a slight backwards curve in the spine, allowing these tendons to remain elongated. However, dancers usually stand perfectly straight, directly over top of the legs causing the tendons to shorten from the lack of this type of consistent stretching. This in turn causes the tendon to stretch uncomfortably over the boney part when the dancer manipulates the hip causing a snapping sound. This sensation usually occurs outside the hip where the…

    Words: 1634 - Pages: 7
  • Essay On Patellar Dislocation

    Introduction Patellar dislocation occurs when your kneecap (patella) slips out of its normal position. The patella is located in a groove in front of the lower end of your thighbone (femur). This groove is called the patellofemoral groove. It usually occurs toward the outside of the leg. What are the causes? This condition is caused by: Force. Sports injuries. Twisting the knee when the foot is planted. What increases the risk? This condition is more like to occur in: Women. People who play…

    Words: 754 - Pages: 4
  • Endocurricular Arthritis Case Study

    COMPONENT TYPE: Smith and nephew cemented Synergy, size 11, high-offset stem, a 54-mm reflection acetabular shell, a 28-mm cobalt-chrome head, a 20-degree acetabular liner, posterior-stabilized, a press-fit acetabular shell, minus 3 mm cobalt-chrome femoral head. ANESTHESIA: General endotracheal. COMPLICATIONS: None. ESTIMATED BLOOD LOSS: 250-mL. INDICATIONS: [Name] is a 76-year-old female with a long history of right hip pain, unresponsive to conservative therapy. She was diagnosed with…

    Words: 764 - Pages: 4
  • Sample Nursing Care Plan

    inability to bear weight seen in the HPI as well as decreased range of motion and pain upon rotation of the right hip seen during the physical exam. X-Ray imaging reveals medial displacement of the right epiphysis and posterior displacement of R leg with 45% of the femoral head exposed. SCFE can be classified as chronic based on length of symptoms, as well as unstable (based on inability to bear weight). Radiographic classification is type II as This is determined by the percentage of…

    Words: 2437 - Pages: 10
  • Missing Person Observation

    The first trait of the femur that was measured was the vertical diameter of the femoral head. The first test resulted in the measurement of the diameter being 48.5 millimeters. Another conduction of this test took place, however, and revealed the final vertical diameter of the femoral head to be 41 millimeters. Since the diameter result is less than 43.5 millimeters, the results conclude the femur being from a female. The next measurement that was taken was on the bicondylar for the width. The…

    Words: 2633 - Pages: 11
  • Knee Joint Research Paper

    Healthy joint The knee joint is a synovial joint and connects the femur to the tibia and consists of two joints the tibiofemoral joint, which joins the tibia to the femur and the patellofemoral joining the kneecap to the femur. These two joints work together to form a hinge joint allowing the knee to bend and straighten and to also rotate slightly from side to side. Muscles There are two main muscles groups of the knee, the hamstrings, quadriceps and muscles of the calf all work to flex,…

    Words: 1714 - Pages: 7
  • Essay On Knee Ligament

    Treatment options of a knee ligament injury can depend on a number of things including which ligament is injured, the severety of the injury, and how physically active the person is. The diagram above shows the bones and ligaments that make up the synovial hinge joint, commonly known as the knee. The four bones that make up the knee joint are the femur (thigh bone), the tibia (shin bone), the fibula (lateral shin bone), and the patella (knee cap). Connective tissue known as articulating…

    Words: 1507 - Pages: 7
  • Gluteal Maximus Muscle Research Paper

    fixed point is at the insertion on the femur, contraction will rotate the pelvis anteriorly[17]. 2.2.2 Psoas This muscle is only muscle group in human body with direct attachment to the spine, the pelvis and the femur. Therefore it has potential to influence, and influenced by movement at both of the spine and hip joints[18]. 2.2.3 Gluteal maximus muscle: superficial group The gluteus maximus muscle is the one of the largest muscle in the gluteal region and it covers most of the other…

    Words: 354 - Pages: 2
  • Artibial Triangle

    connective tissue that is white, smooth and it covers the ends of the bone and as the joint moves it protects it, as mentioned by Scuderi and Tria (2010). Cartilage is what allows the bones to move more freely against each other. This articular cartilage covers the ends of the femur, top of the tibia and back of the patella, as pictured in Figure 4. It is kept slippery by the synovial fluid that is made by the synovial membrane (Marieb & Hoehn, 2013). The bones move easily since it is smooth…

    Words: 1102 - Pages: 4
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