Is this part about pelvic nerves and defecation True or False?Copied from the "Strange Question" thread.
quote:The defecation reflex is a complex procedure which begins when the pressure in the terminal part of the colon reaches between 2.5 and 6.5 kilopascals, or between 2.5 and 6.5 per cent of atmospheric pressure. It is controlled by the sacral part of the spinal cord, via the parasympathetic pelvic nerves. It also augments more complex reactions controlled by higher levels of the central nervous system. In general, the parasympathetic effect prevails, relaxing the muscles and slowing the heart rate.