Read Aloud Rate Contant Submit @2022 Chamberlain University LLC. All rights reserved. Digestive Hormones Select the correct hormones to match the corresponding description. Digestive Hormone Description . Found in gastric cells . Increases stomach motility and acid production . Promotes gastric emptying . Found in intestinal mucosal cells . Stimulated by fat and amino acids in the duodenum . Inhibits gastric secretion and motility . Fucks pancreatic enzyme secretion
In the realm of digestive physiology, various hormones play pivotal roles in regulating the intricate processes of digestion and absorption. Let’s match these essential hormones to their corresponding descriptions:
1. Gastrin: This hormone is synthesized and released by gastric cells. Gastrin holds the responsibility of enhancing stomach motility and acid production, which aids in breaking down ingested food particles. Moreover, it promotes gastric emptying, facilitating the movement of digested material into the small intestine for further processing.
2. Cholecystokinin (CCK): This hormone is produced in the cells of the intestinal mucosa. Its secretion is triggered by the presence of fats and amino acids within the duodenum, the initial section of the small intestine. CCK serves to inhibit both gastric secretion and motility, thus providing time for proper digestion and absorption of nutrients.
3. Secretin: Secretin is another hormone released from the cells of the intestinal mucosa. It is stimulated by the presence of acidic chyme entering the duodenum. The primary function of secretin is to regulate the pH balance in the duodenum. In response to acidic chyme, it stimulates the pancreas to release bicarbonate-rich pancreatic juices, which neutralize the acidic content from the stomach.
4. Cholecystokinin (CCK) (Again!): CCK, in addition to its roles mentioned above, also acts as a trigger for pancreatic enzyme secretion. This hormone prompts the pancreas to release a cascade of enzymes that are crucial for the breakdown of complex nutrients, such as carbohydrates, proteins, and fats.
In summary, these digestive hormones work harmoniously to orchestrate the intricate processes of digestion. Gastrin initiates the digestive journey by enhancing stomach motility and acid production. CCK, responding to the presence of fats and amino acids, inhibits gastric functions while stimulating pancreatic enzyme secretion. Secretin, triggered by acidic chyme, ensures the optimal pH for digestive enzymes in the duodenum. This collaboration of hormones underscores the remarkable complexity and precision of the digestive system, ensuring efficient nutrient extraction and absorption for overall bodily function.
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