parathyr/o, parathyroid/o (9/11)

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parathyr/o or parathyroid/o is a combining form that refers to “parathyroid gland”.

The parathyroid glands are situated behind the thyroid at the base of your neck, roughly the size of a rice grain. The parathyroid glands produce parathyroid hormone, which assists in maintaining a healthy balance of calcium in the bloodstream and in tissues that rely on calcium.