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甲状腺是人体最大的内分泌腺体,位于甲状软骨下紧贴在气管的第三、四软骨环前面,由两侧叶和峡部组成,女性的甲状腺略大、略重。甲状腺后面有4枚甲状旁腺及喉返神经。血液供应有上下左右四条动脉,所以甲状腺血供较丰富。
The thyroid gland is the largest endocrine gland in the human body. It is located in front of the third and fourth cartilage rings under the thyroid cartilage. It consists of bilateral lobes and isthmus. The female’s thyroid is slightly larger and heavier. There are 4 parathyroid glands and recurrent laryngeal nerve behind the thyroid gland. There are four arteries in the blood supply, so the thyroid blood supply is abundant.