thyreoïde

Thyreoïde is the French term for the thyroid gland. This is an endocrine gland located in the anterior neck, below the larynx. It is butterfly-shaped and consists of two lobes connected by an isthmus. The thyroid gland produces hormones that regulate metabolism, growth, and development. The primary hormones secreted are thyroxine (T4) and triiodothyronine (T3). These hormones play a crucial role in many bodily functions, including heart rate, body temperature, and energy expenditure. Iodine is essential for the synthesis of these thyroid hormones. The production of thyroid hormones is regulated by the pituitary gland, which secretes thyroid-stimulating hormone (TSH). Dysfunction of the thyroid gland can lead to various conditions such as hypothyroidism, where the gland is underactive and produces too little hormone, or hyperthyroidism, where it is overactive and produces too much. Thyroid diseases can affect people of all ages and can have a wide range of symptoms. Diagnosis typically involves blood tests to measure hormone levels and imaging techniques.