Pigmentation of skin is influenced by

Options

A. FSH
B. LH
C. MSH
D. ACTH

Answer

To solve the question regarding what influences the pigmentation of skin, we can break it down into the following steps:

### Step-by-Step Solution:

1. **Understanding Pigmentation**:
- Pigmentation of the skin refers to the coloration of the skin, which is primarily determined by the presence of a pigment called melanin.

2. **Role of Melanin**:
- Melanin is produced by specialized cells known as melanocytes, which are located in the epidermis (the outer layer of the skin).

3. **Process of Melanin Production**:
- The production of melanin occurs through a process called melanogenesis. This process is crucial because it determines the amount of melanin present in the skin.

4. **Hormonal Influence**:
- The production of melanin is influenced by certain hormones. Among the options provided:
- A) FSH (Follicle Stimulating Hormone) - primarily involved in reproductive processes.
- B) LH (Luteinizing Hormone) - also primarily involved in reproductive functions.
- C) MSH (Melanocyte Stimulating Hormone) - directly stimulates melanocytes to produce melanin.
- D) ACTH (Adrenocorticotropic Hormone) - primarily stimulates the adrenal glands but does not directly influence skin pigmentation.

5. **Identifying the Correct Hormone**:
- Since MSH (Melanocyte Stimulating Hormone) is specifically responsible for stimulating the production of melanin in melanocytes, it is the hormone that influences skin pigmentation.

6. **Conclusion**:
- Therefore, the correct answer to the question is option C, MSH (Melanocyte Stimulating Hormone).

### Final Answer:
The pigmentation of skin is influenced by **MSH (Melanocyte Stimulating Hormone)**.

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