Final answer:
The constipation reported by the patient after a car accident and stress can be attributed to parasympathetic overstimulation as a result of the stress response.
Step-by-step explanation:
The constipation reported by the patient after a car accident and stress can be attributed to parasympathetic overstimulation as a result of the stress response.
In general, sympathetic activation, which is associated with the fight-or-flight response, restricts the activity of enteric neurons, leading to decreased GI secretion and motility. On the other hand, parasympathetic activation, known as the rest-and-digest response, increases GI secretion and motility.
Stress-induced parasympathetic overstimulation can lead to increased GI secretion and motility, which can contribute to constipation.