الفهرس Only 14 pages are availabe for public view
 |  | from | 229 |  |  |
| | | from | 229 | | |
Abstract
The term pelvic floor refers to the pelvic diaphragm, the sphincter mechanism of the lower urinary tract, the upper and lower vaginal support, and the internal and external anal sphincters. Unlike other skeletal muscles in the body, the pelvic floor remains in constant tone (continuous firing of motor units) even during sleep. The only time this tone is interrupted is during defecation or urination.
There are few regions in the human anatomy that have remained as shrouded in misunderstanding as has the anorectum. With newer research using methods which are able to quantify parameters of anorectal motility and physiology, relatively dogmatic physiological concepts have been challenged. As a result, there is now a renewed appreciation of the clinical importance of anorectal physiology which subsequently leads us to the understanding of associated disorders like disordered defecation and incontinence