"thyroid gland" の定義と意味

What is "thyroid gland"?

The thyroid gland is a butterfly-shaped endocrine gland located in the neck region, below the Adam's apple. It plays a crucial role in regulating metabolism and controlling various bodily functions. The thyroid gland produces thyroid hormones, primarily thyroxine (T4) and triiodothyronine (T3), which are responsible for maintaining energy levels, body temperature, heart rate, and growth and development. These hormones also influence the functioning of other organs and systems in the body. The thyroid gland is regulated by the pituitary gland through the secretion of thyroid-stimulating hormone (TSH), which controls the production and release of thyroid hormones. Imbalances in thyroid hormone levels can lead to various health conditions, such as hypothyroidism or hyperthyroidism. Overall, the thyroid gland is vital for maintaining optimal metabolic activity and overall well-being.