APPENDIX 289 



importance in interpreting cell life, and it is for this reason that they have 

 been studied so keenly in the past ten years. The colloids localize the cell 

 reactions and furnish the physical basis of its physiology; they form the 

 cell machinery." 



NOTE VI 



INTERACTIONS OF THE ORGANS OF INTERNAL SECRETION AND HEREDITY ^ 



The following table expresses the action of some of the organs of internal 

 secretion : 



On Protein Metabolism 

 Stimulating Inhibiting 



(accelerating) (retarding) 



Thyroid Pancreas 



Pituitary body Parathyroids 



Suprarenal glands and other 



adrenalin-secreting tissue 

 Reproductive glands 



On Calcium Retention 

 Favorable to Inhibiting 



Pituitary body Reproductive glands 



Thyroids 

 Parathyroids 



The facts that are here presented show that the action of the anterior 

 lobe of the pituitary body upon the chemical changes or transformations 

 taking place in the vertebrate organism or in any of its cells strongly re- 

 sembles the action of the thyroid, although less pronounced. It is clear 

 from its relation to the reproductive organs, to the adrenalin-secreting 

 tissues of the suprarenal glands and other similar tissues, and to the 

 formation of an abnormal amount of glucose in the urine, that the 

 pituitary body, thyroids, reproductive glands, suprarenals, and thymus 

 are a closely related series of organs which mutually influence each other's 

 growth. 



Important as these organs are, it must be remembered that the co- 

 ordination of all the chemical changes and transformations within the 

 body — all processes of renewal, change, or disorganization such as respira- 

 tion, nutrition, excretion, etc. — embraces every organ in it. The body is 

 an organic whole, and the so-called organs of internal secretion are not 

 unique, but the bones, muscles, skin, brain, and every part of the body are 

 furnishing internal secretions necessary to the development and proper 



' Mathews, Albert P., 1916. Physiological Chemistry, pp. 649, 650 (modified). 



