Joint locking (medicine) symptom of: Locking of the knee happens during the last stages of extension when a person is standing up. Medial rotation of femur occurs as the space available at the lateral condyle of tibia is being used up by the lateral condyle of femur during extension. Therefore, lateral femoral condyle acted as an axis for medial femoral condyle to rotate backwards. This movement is aided by oblique pull of the ligaments of the knee joint and contraction of the quadriceps muscles. The ligaments are pulled taut when the knee joint is locked in place during standing. When the knee is
Falana Falana Falana is a genus of moths of the Noctuidae family. Palpi upturned, where the second joint reaching vertex of the head and third joint long and naked. Antennae bipectinated in a male with short branches. Metathorax with slight tufts. Abdomen with a dorsal tuft on the first segment, keeled below, with pairs of flattened scale-like plates. Femur with scaly tufts at the base. Fore tibia hairy, mid and hind tibia with medial and distal tufts. Fore wings with an acute apex. Outer margin excised below apex and produced to a rounded lobe at center and point at vein 2.