Increased ratio of insulin to glucagon causes:
**Core Concept**
The balance between insulin and glucagon is crucial for glucose homeostasis. Insulin promotes glucose uptake and storage, while glucagon stimulates glucose release from storage sites. An increased ratio of insulin to glucagon favors glucose uptake and storage, leading to decreased blood glucose levels.
**Why the Correct Answer is Right**
An increased ratio of insulin to glucagon is achieved through various mechanisms, including:
* Increased insulin secretion from the pancreas in response to high blood glucose levels.
* Decreased glucagon secretion from the pancreas, also in response to high blood glucose levels.
* Increased insulin sensitivity, allowing cells to respond more effectively to insulin.
* Decreased glucagon receptor expression, reducing glucagon's effect on glucose release.
This balance is essential for maintaining normal blood glucose levels and preventing hyperglycemia.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it does not accurately describe the effects of an increased insulin to glucagon ratio.
**Option B:** This option is incorrect because it does not accurately describe the effects of an increased insulin to glucagon ratio.
**Option C:** This option is incorrect because it does not accurately describe the effects of an increased insulin to glucagon ratio.
**Clinical Pearl / High-Yield Fact**
A key clinical correlation is that an increased insulin to glucagon ratio is seen in hypoglycemia, where blood glucose levels are low, and the body attempts to increase glucose uptake and storage to correct the imbalance.
**Correct Answer: None of the above**