The thyroid makes hormones:
- Thyroid hormone: The thyroid follicular cells make thyroid hormone. This hormone affects heart rate, blood pressure, body temperature, and weight. For example, too much thyroid hormone makes your heart race, and too little makes you feel very tired.
- Calcitonin: The C cells in the thyroid make calcitonin. This hormone plays a small role in keeping a healthy level of calcium in the body.
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