The Vomiting Centre and the Chemoreceptor Trigger Zone (CTZ)
1 · Introduction Vomiting (emesis) is an evolutionarily conserved defence reflex that forcefully expels gastric—and at times intestinal—contents through the mouth. Although the motor act seems singular, it is orchestrated by a distributed brain-stem network that integrates sensory danger signals from the gut, the bloodstream, the vestibular system and higher cortical areas. Two functional loci dominate … Read more