Features histotopography, vascularization, innervation and muscle development anal human colon and laboratory white rat (review of the literature)

The review presents the current scientific literature and the authors' results. Zone of the anal canal and pelvic diaphragm mammalian complex by anatomy and embryological origin. Complicated and variable histology anal explains the different types of cancer. The coordinated activity of two tonic sphincter ensures that their function. Repair mechanisms sphincter system defined regeneration capabilities of their component tissues. Rectal submucosal vascular plexus formed network venous vessels which have multiple thickening separated sfinkteropodobnymi various bottlenecks. Diagnosis and treatment of complex anorectal disorders requires a multidisciplinary approach.