Hirschsprung's disease is
Is seen more frequently in children with Down's syndrome than in the general population. polygenic inheritance, male>female. Increase in sympathetic activity is due to absence of parasympathetic ganglions in the plexi of Auerbach and Meissner.
Is inherited in an Autosomal recessive fashion
Is due to unopposed parasympathetic activity in the affected segment of the bowel
Has an equal incidence in girls and boys
Is seen more frequently in children with Down's syndrome than in the general population
All India exam