As these ganglia are a part of the parasympathetic innervation from the pelvic nerves, the congenital absence of mesenteric ganglion cells in the rectosigmoid in Hirschsprung's disease probably ...

Motor neurons in the different cranial motor nuclei extend axons, forming the cranial nerves, to innervate muscles and parasympathetic ganglia in the head and neck. The specification of the ...

The ganglion cells in Auerbach's plexus are part of the parasympathetic nervous system. Since the lower colon is invariably affected in these cases, the fact that this area of colon receives its ...