Calcaneocuboid ligament

The calcaneocuboid ligaments are ligaments that connect the heel and the anterior part of the calcaneus. In front of the heel, they pass into the talocaleonavicular ligament, running from the base of the tuberosity of the talus to the lower edge of the navicular cavity. The calcaneofibular-navicular ligament is a continuation of the calcaneofibular-cuboid ligament on the outer edge of the talus notch. All ligamentous formations that are directly related to the function of the arch of the foot form a single firmly connected connective tissue group that accompanies the tendons of the muscles protruding on the back of the foot. This group of ligaments is represented mainly by transverse (transverse calcaneonavicular-tarsal ligaments, anterior and posterior interosseous, interarticular calcaneolateral and other ligaments), as well as thick arcuate (septal-calcaneal, calcaneal-sphenoid, sphenoclavicular ligaments) and oblique (in generally stronger than transverse ligaments. All ligaments, starting at the posterior edge of the fibula at the back and approaching the lateral part of the calcaneal tubercle, simultaneously cover the entire diameter of the foot. Thus, all the ligaments of the arch seem to lie in the plane of the wall, firmly intertwined with each other and dividing it into a number of separate zones - sections. Directly attached to these ligaments are bundles of elastic fibers of type IV collagen, abundantly scattered throughout the entire arch of the foot and forming a short longitudinal strip on the surface of the superficial dermatomal muscles covered by the skin-shell. This skin contains a huge number of nerve endings, thanks to which the ligaments of the arch are directly connected to the work of muscle groups.

We can say that the fibers of the ligaments also connect individual muscle groups (which touch the connective tissue base), forming from them a single organismal complex or organ. This mechanism provides us with a clear answer to the questions of why the muscles of the lower leg or hand cannot move on their own, although during contraction they are stretched and relaxed by an elastic ligamentous network. In addition, if we stretch one ligament, the rest also stretch, reaching an average length. We can clearly see this by riding