Hormone stimulating iodine uptake is

Options

A. Thyroxine
B. TSH
C. MSH
D. Prolactin.

Answer

To answer the question "Hormone stimulating iodine uptake is," we will analyze the options provided and determine which hormone is responsible for stimulating iodine uptake in the body.

### Step-by-Step Solution:

1. **Identify the Options**: The options given are:
- Thyroxine
- TSH (Thyroid Stimulating Hormone)
- MSH (Melanocyte Stimulating Hormone)
- Prolactin

2. **Understand the Role of Each Hormone**:
- **Thyroxine**: This is a thyroid hormone that is produced by the thyroid gland. It is synthesized from iodine and tyrosine but does not stimulate iodine uptake.
- **TSH (Thyroid Stimulating Hormone)**: This hormone is secreted by the anterior pituitary gland. It stimulates the thyroid gland to uptake iodine and synthesize thyroxine.
- **MSH (Melanocyte Stimulating Hormone)**: This hormone is involved in pigmentation and does not have a role in iodine uptake.
- **Prolactin**: This hormone is important for milk production in mammals and does not stimulate iodine uptake.

3. **Determine the Correct Answer**:
- From the analysis, TSH is the hormone that stimulates the thyroid gland to uptake iodine, which is necessary for the production of thyroxine. Therefore, the correct answer is **TSH (Thyroid Stimulating Hormone)**.

### Final Answer:
The hormone stimulating iodine uptake is **TSH (Thyroid Stimulating Hormone)**.

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