You evaluate a newborn for excessive vomiting. He was born 48 hours ago and still has not passed any meconium. His abdomen is distended. You are able to appreciate colonic peristalsis and note a...

You evaluate a newborn for excessive vomiting. He was born 48 hours ago and still has not passed any meconium. His abdomen is distended. You are able to appreciate colonic peristalsis and note a palpable fecal mass. You are able to determine that several family members have had similar problems.What neurons are affected?

A. Preganglionic sympathetic neurons

B. Postganglionic parasympathetic neurons

C. Preganglionic parasympathetic neurons

D. Postganglionic sympathetic neurons

E. Neurons in the splanchnic ganglia