Besides insulin and glucagon the hormones involved in carbohydrates metabolism are

Options

A. Epinephrine and parathormone
B. Epinephrine and corticosterone
C. Glucocorticoids and calcitonin
D. Nor-epinephrine and melatonin

Answer

To answer the question regarding the hormones involved in carbohydrate metabolism besides insulin and glucagon, we can analyze each option provided:

### Step-by-Step Solution:

1. **Identify the hormones mentioned**: The question asks for hormones involved in carbohydrate metabolism besides insulin and glucagon.

2. **Evaluate the first option: Epinephrine and Parathormone**:
- **Epinephrine**: This hormone, also known as adrenaline, plays a significant role in carbohydrate metabolism by promoting glycogenolysis (the breakdown of glycogen to glucose) and increasing blood glucose levels.
- **Parathormone**: This hormone primarily regulates calcium levels in the blood and does not have a direct role in carbohydrate metabolism.
- **Conclusion**: This option is incorrect because Parathormone is not involved in carbohydrate metabolism.

3. **Evaluate the second option: Epinephrine and Corticosterone**:
- **Epinephrine**: As previously mentioned, it is involved in carbohydrate metabolism.
- **Corticosterone**: This hormone is a type of glucocorticoid that also plays a role in glucose metabolism by promoting gluconeogenesis (the production of glucose from non-carbohydrate sources).
- **Conclusion**: This option is correct as both hormones are involved in carbohydrate metabolism.

4. **Evaluate the third option: Glucocorticoid and Calcitonin**:
- **Glucocorticoid**: This class of hormones, which includes cortisol, is involved in glucose metabolism, promoting gluconeogenesis and increasing blood glucose levels.
- **Calcitonin**: This hormone is involved in calcium and phosphate metabolism and does not play a role in carbohydrate metabolism.
- **Conclusion**: This option is incorrect because Calcitonin is not involved in carbohydrate metabolism.

5. **Evaluate the fourth option: Norepinephrine and Melatonin**:
- **Norepinephrine**: Similar to epinephrine, norepinephrine is involved in carbohydrate metabolism by influencing glycogenolysis.
- **Melatonin**: This hormone regulates sleep-wake cycles and circadian rhythms and does not have a role in carbohydrate metabolism.
- **Conclusion**: This option is incorrect because Melatonin is not involved in carbohydrate metabolism.

### Final Answer:
The correct answer is **Epinephrine and Corticosterone** (Option 2).

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