AUTHOR'S ABSTRACT OF THIS PAPER ISSUED 
BY THE BIBLIOGRAPHIC SERVICE, MARCH 17 
THE POSTNATAL DEVELOPMENT OF THE SUPRA- 
RENAL GLAND—AND THE EFFECTS OF INANITION 
UPON ITS GROWTH AND STRUCTURE IN THE AL- 
BINO RAT 
C. M. JACKSON 
Institute of Anatomy, University of Minnesota, Minneapolis 
TEN FIGURES 
CONTENTS 
USE SETS GN ive Tir ght 03 Fos Be Ren sr OS ee cr eae 222 
Wolumes ofsuprarenal cortex and umedullan ska. os 2 cto sous es deans os aa 228 
Volumes of suprarenal parenchyma and stroma.....:............0.....000- 232 
pase al. parenenyima cells and nuclei. .2.00, 4259.05). let sods woo bs ee 233 
Cell division—frequency of mitosis.............. ia treet Sts WE NEY ts hey 239 
Histological changes in the suprarenal gland................0.......000000 244 
PE NGriMal MOS Natal MIS LOPCHOSIS. 2°. 2450)... 5 5.cae-ols iisaatae sate da clas ape ae 45,0 244 
2. Changes in young rats stunted by underfeeding...................... 261 
3. Changes in rats refed after stunting by underfeeding................ 263 
4. Changes in adult rats after acute or chronic inanition............... 2A4 
NMorpnopenesis of the suprarenal gland’. 2.5... 224406. 0. s ese deeds cee tele 269 
"SUS ads hi oe Weare GR gl id ph A a a 2 aR in eine OR One a 270 
PReTAUEECICILOO es, Ave t,t oy eked ta ek ee he a eae eek. Ep. 277 
In a previous paper (Jackson, ’13) the relative growth curve of 
the suprarenal gland in the albino rat was described, including 
the characteristic difference in weight according to sex. In 
later papers (Jackson, ’15 a, ’15 b) the changes in the weights of 
the suprarenal in underfed young rats, and in adult rats during 
acute and chronic inanition were considered. The object of 
the present study is to extend these observations so as to include 
the volumetric analysis and histological structure of the supra- 
renal cortex and medulla during normal postnatal development 
and as affected by inanition and by refeeding. 
This paper forms the fifth of a series of studies upon the effects 
of inanition in the albino rat, the investigation being supported 
by a special grant from the research funds of the Graduate School 
of the University of Minnesota. 
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