If the level of glucose drops in the blood, the body releases ____ to bring it back to normal.

Options

A. Insulin Frome beta cell of pancreas
B. Calcitonin from thyroid gland
C. glucagon from alpha cells of pancreas
D. Adneraline from adrenal medulla

Answer

To solve the question, "If the level of glucose drops in the blood, the body releases ____ to bring it back to normal," we can follow these steps:

### Step 1: Identify the Problem
The question states that the glucose level in the blood has dropped. We need to determine which hormone is released by the body to increase the glucose level back to normal.

### Step 2: Understand Hormonal Functions
We need to consider the functions of various hormones related to glucose metabolism:
- **Insulin**: Produced by the beta cells of the pancreas, insulin lowers blood glucose levels by facilitating the uptake of glucose into cells.
- **Glucagon**: Produced by the alpha cells of the pancreas, glucagon raises blood glucose levels by promoting the conversion of glycogen to glucose in the liver.
- **Adrenaline**: Released from the adrenal medulla, it can also increase blood glucose levels but is primarily known as an emergency hormone.
- **Calcitonin**: Produced by the thyroid gland, it regulates calcium levels and does not affect glucose levels.

### Step 3: Analyze the Options
Given the functions of the hormones:
- **Insulin** is not the correct answer because it decreases blood glucose levels.
- **Calcitonin** does not affect glucose levels at all.
- **Glucagon** is the hormone that increases blood glucose levels, making it a strong candidate.
- **Adrenaline** can increase glucose levels but is not the primary hormone for this specific function.

### Step 4: Conclusion
The hormone that is primarily responsible for increasing blood glucose levels when they drop is **Glucagon**.

### Final Answer
If the level of glucose drops in the blood, the body releases **Glucagon** to bring it back to normal.

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