Morphology of receptors of biliary duct

Neurohistological methods found polyvalent receptors in the wall of various designs biliary systems. The concentration of receptor structures of the highest in the end of the common bile duct, including vials of fater papilla. In this area the receptors overlap each other and form the receptor field. The basic amount of receptor sites associated with spinal 7-8 thoracic segments of the spinal cord.