The fascia is a special type of connective tissue membranes covering the organs, vessels, nerves and forming cases for muscles. Often, instead of the term "fascia" to determine all kinds of connective tissue sheets use the term "aponeurosis".
Histologically fascia are dense connective tissue, which is dominated by collagen fibers interwoven in different directions. With layers of collagen fibers alternating elastic layers, forming a network. Cellular elements in the fascia small, it is mainly the fibroblasts. Fascia perform supporting and trophic function; isolating the muscles and neurovascular bundles, they complement bone skeleton and are flexible continuation (soft skeleton).
Origin fascia divided into three groups: 1) muscle fascia, of which there are: (a) fascia, forming the vaginal muscles and tendons; b) fascia, which is the direct continuation of the tendons (for example, the Palmar aponeurosis); fascia - the rudiments of muscles; 2) coelomic related to education aloma - primary embryonic cavity; 3) Priangarye fascia formed around neurovascular bundles. Fascia participate in education fascial lodges, sheaths, delimit fiber spaces and crevices. Fascia is rich in blood vessels and nerves. Cm. also Tendons.