Popis: |
The distribution and morphology of nitroxidergic elements in the esophagus, stomach, and intestine of the shishamo smelt Hypomesus japonicus (Teleostei: Salmoniformes) were studied. Nitroxidergic cells and fibers were found in all examined parts of the digestive tract, occurring most frequently in the stomach and rectal portion of the intestine. The spatial density of the nerve cells and fibers was maximum in the myenteric plexus and circular muscle layer and decreased in the longitudinal muscle layer and in the submucous plexus. |