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郑州大学2002届 研究生论文答辩会

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郑州大学2002届 研究生论文答辩会 Powered By Docstoc
					           Endocrine system
Components
  endocrine glands: thyroid gland,parathyroid
                  gland,adrenal gland,pituitary
                  gland,pineal body,etc.
  Scattered endocrine cells: islet cells of
                              pancreas,etc.
Function: secreting hormones which regulate the
          functions of the body and maintenance of
          a steady internal environment state.
Synthesis of thyroid hormone
I+ absorbed from blood                       Glycoprotein synthesized
   by follicular cells                          by follicular cells


                  Monoiodotyrosyls or diiodotyrosyls



           Iodinated thyroglobulin (colloid in the follicles)



       Taken back into the follicular cells to further modification



                    Thyroid hormones ( T3 and T4)
Myxedema and hyperthyroidism
cretins
C cells
C cells
parathyroid gland
zona glomerulosa
zona fasciculasa
zona reticularis
Subdivision of the pituitary
 Neurohypophysis
   pars posterior (pars nervosa)
   infundibulum

 Adenohypophysis
   pars anterior (pars distalis)
   pars tuberalis
   pars intermedia
Pars anterior
Pars anterior
Pars intermedia
Pars posterior
hypophysis

				
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posted:1/6/2013
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