segment is a physiologically highly integrated segment.
mechanical factor modified by sensory and reflex components
are integrated instantaneously in order to initiate normal defecation
within few seconds and to maintain continence in a fraction
of a second.
This highly integrated nature may be responsible the lack of
answers to the enigmatic question concerning how the anal sphincter
works despite the enormous disseminated research data available
in the literature which studies different factors in a un-integrated
The use of flow equation for mathematic integration of Ano-rectal
physiology first appeared in the international literature by
Dr. A. Farag in 1998 aiming at answering the above-mentioned
question, which may standardize our approaches to functional