Delta cells of pancreas secretes
**Core Concept**
The pancreas contains several types of cells, each responsible for secreting different hormones that regulate various physiological processes. **Delta cells** are one such type, playing a crucial role in the endocrine function of the pancreas. They are involved in the secretion of a specific hormone that helps in regulating glucose and lipid metabolism.
**Why the Correct Answer is Right**
Delta cells secrete **somatostatin**, a hormone that inhibits the release of other hormones such as insulin and glucagon. This mechanism is crucial for maintaining the balance of glucose levels in the blood. Somatostatin acts through **somatostatin receptors** to exert its inhibitory effects on the secretion of hormones from other pancreatic cells.
**Why Each Wrong Option is Incorrect**
**Option A:** Incorrect because it is not associated with delta cells.
**Option B:** Incorrect as it is not the primary hormone secreted by delta cells.
**Option C:** Incorrect because, although related to pancreatic function, it is not the hormone secreted by delta cells.
**Clinical Pearl / High-Yield Fact**
Somatostatin has a wide range of effects beyond the pancreas, including inhibiting the release of growth hormone from the pituitary gland. This makes it a key hormone in regulating various bodily functions.
**Correct Answer:** D. Somatostatin