Final answer:
Short reflexes in the digestive system are stimulated by the enteric nerve plexuses, which directly influence digestive function. When stretch receptors in the stomach are activated, a short reflex is initiated to increase stomach motility and aid digestion.
Step-by-step explanation:
Short reflexes in the digestive system are stimulated by the enteric nerve plexuses.
The enteric nervous system, which is part of the digestive system, contains myenteric plexuses that directly influence digestive function. When stretch receptors in the stomach are activated by the filling and distension of the stomach, a short reflex is initiated, directly activating the smooth muscle fibers of the stomach wall to increase motility and digest the excessive food in the stomach. This reflex does not require involvement from higher brain centers or the autonomic nervous system.