A child who is experiencing the signs and symptoms of influenza has vomited frequently over the last 24 hours
While discussing vomiting with a group of nursing students, the instructor asks, "What site in the neurologic system is responsible for vomiting?" Which student response is most accurate?
A) Myenteric plexus
B) Intramural plexus
C) Vagus nerve
D) Chemoreceptor trigger zone
Ans: D
Feedback:
The act of vomiting is integrated in the vomiting center, which is located in the dorsal portion of the reticular formation of the medulla near the sensory nuclei of the vagus. The vomiting center can be activated directly by irritants or indirectly following input from four different sources, one of which is the chemoreceptor trigger zone (which is activated by chemical agents such as drugs and toxins).
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