Then, when the blood runs low on calcium, a signaling device called the parathyroid gland can activate a process by which calcium is taken from the skeleton and put back into the blood.
那么，当流动的血液中钙含量过低，一个叫做甲状旁腺的发信号装置就会激活一个流程，致使骨骼中的钙流失到血液里。
The adrenal gland dumps cortisol and adrenaline into the blood stream.
肾上腺分泌大量的皮质醇和肾上腺素进入血液。
A blood test confirmed that she had an advanced case of Grave's disease, an autoimmune disorder that causes the thyroid gland to swell and produce too much of the powerful hormone.
验血结果证实，她患了甲状腺机能亢进，这是一种自身免疫疾病，会导致甲状腺肿大并分泌过多强力激素。
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