Thyroid gland articles from across Nature Portfolio

The thyroid gland is a butterfly-shaped endocrine gland located in the neck underneath the cartilage tissue that forms the Adam's apple. By producing hormones – such as tri-iodothyronine (T3), tetraiodothyronine (T4) and calcitonin – the thyroid gland regulates a number of functions, for example the metabolic rate of cells and blood calcium levels.

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