Question

Enterogastric reflexes are triggered by chyme entering the duodenum. They inhibit gastric secretion, inhibit gastric motility, and involve the enteric nervous system. Which of the following statements is correct?

1) Only the first statement is correct.
2) Only the second statement is correct.
3) Only the third statement is correct.
4) Only the fourth statement is correct.
5) All of the statements are correct.

Answer 1

All the statements regarding enterogastric reflexes are correct; they are initiated by chyme in the duodenum and involve inhibiting gastric secretion and motility, as well as engaging the enteric nervous system.

Step-by-step explanation:

Enterogastric reflexes are indeed triggered by chyme entering the duodenum, which leads to a series of responses to inhibit gastric secretion and motility. These reflexes are a critical part of the digestive process, helping to regulate the flow of food from the stomach to the small intestine and ensuring that the intestine can effectively handle the chyme. The components and outcomes of this reflex are:

• Inhibition of gastric secretion to prevent an excess of gastric juice which may harm the duodenum or interrupt its digestion and absorption processes.
• Inhibition of gastric motility to regulate the passage of chyme, preventing the duodenum from being overwhelmed by too much material at once.
• Engagement of the enteric nervous system, a complex network that governs the function of the gastrointestinal system largely independently of the central nervous system.

All of the statements presented in the question accurately describe aspects of the enterogastric reflex, making the correct response that all of the statements are correct.