Human leg in a straight line, which represents the mechanical longitudinal axis of the leg, the Mikulicz line. This line stretches from the hip joint (or more precisely the head of the femur), through the knee joint (the intercondylar eminence of the tibia), and down to the center of the ankle (the ankle mortise, the fork-like grip between the medial and lateral malleoli). In the tibial shaft, the mechanical and anatomical axes coincide, but in the femoral shaft they diverge 6°, resulting in the "femorotibial angle" of 174° in a leg with normal axial alignment. A leg is considered straight when, with
Tibia fusus Tibia fusus Tibia fusus, common name Spindle tibia or Shinbone Tibia Gastropod, is a species of large sea snail, a marine gastropod mollusk in the family Strombidae, the true conchs. This species is widespread in Western Indian Ocean and Western Pacific, from Indochina, China Sea, southern Japan and the Philippines to the Banda Sea, Indonesia, Australia and Oceania. Most "Tibia fusus" live in tropical offshore waters where there is plenty of sand, at depths of 5 to 50 m. The shells of "Tibia fusus" can reach a length of (including the long siphonal canal), with a typical length of 23