INNERVATION OF THE JOINTS

The joints are innervated so finely branches Sensory peripheral nerves, such as nerve vegetative. The sensory innervation of the joints of the peripheral nerves and tension and collects information on stretching the fibrous capsule and ligaments. In Generally, the origin of the sensory nerves of each joint It corresponds to nerve trunks that innervate the muscles acting on the joint. Has been noted, in addition, the areas of the joint being tightened under the action of muscles is innervated by branches from trunks innervating antagonistic muscles of that action. This peculiar topographic distribution of sensory and motor nerves it is very suggestive the establishment of local reflex arcs adapt the muscle activity to tension caused in the joint. Innervation of joints by vegetative nerves reaches the joint accompanying vessels blood. The role of this innervation is not fully clarified, but within its functions may include as follows: 1) collect some information afferent Overvoltage and pain information; 2) regulate synovial fluid production through its action on the vessels; and 3) have a trophic effect on tissues joint. Vegetative nerve joint use  a variety of neurotransmitters, among them They include various neuropeptides such as neurokinin A (NKA), substance P (SP), neuropeptide Y (NPY), and related neuropeptide calcitonin gene (CGRP).