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jia zhuang xian bing , shi yi zhong quan shen xing de ji bing
Author(s): HANG Zhouzhenjinggongnengyixue
Pages: 38-
39
Year: 2016
Issue:
3
Journal: Health Life
Abstract: 甲状腺是脊椎动物非常重要的腺体,在人体中是最大的内分泌腺,呈棕红色,分左、右两叶,中间相连,呈“H”形,约20~30克.甲状腺位于喉下部气管上部的前侧,吞咽时可随喉部上下移动.
甲状腺激素的生理功能主要为:1.促进新陈代谢,使绝大多数组织耗氧量加大,并增加产热.2.促进生长发育,对长骨、脑和生殖器官的发育和生长至关重要,尤其是婴儿期.此时缺乏甲状腺激素则会患呆小症.3.提高中枢神经系统的兴奋性.此外,还有加强和调控其他激素的作用及加快心率、加强心缩力和加大心输出量等作用.
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