Prenatal Growth of the Human Body. 



161 



TABLE IV (Continued). 



Relative Size of Various Fetal Organs (in Percentage of Total Body 



Volume) in Specimens Observed. 



No. and Sex. 



171 (m) 



219 (f) 



•Crown-rump 



length j 21 cm. 23 cm. 



Volume of j 



791.8 cc. 



body [ 680 cc. 



Head 



Upper extrem- 

 ities 



Lower extrem- 

 ities 



Trunk 



Brain 



Spinal cord 



Thyroid gland 



Thymus 



Heart 



Right lung I 



Left lung i 



Liver 



Spleen 



Pancreas 



Right kidney . . 



Left kidney — 



Right supra- 

 renal 



Left supra- 

 renal 



Stomach ; 



Intestines 



Sex glands 



33.09% 33.0 % 



I 

 6.91 ' 8.20 



15.15 

 44.85 

 17.65 

 .199 

 .072 

 .221 

 1.03 

 1.4 

 1.1 

 4.85 

 .078 

 .074 

 .338 



.147 



.176 

 .22 

 3.24 



15.32 

 44.0 

 (16.0) 

 .230 

 .043 

 .256 

 .87 

 1.36 

 1.03 

 4.74 

 .227 

 .060 

 .468 

 .484 



.136 



.160 

 .519 

 3.77 

 (.022) 



193 (m) 



208 (m) 



cm. j 31.5 cm. 



941 cc. 1981.4 cc. 



31.88% 



7.95 



18.17 

 42.0 

 14.88 

 .191 

 .084 

 .425 

 1.06 

 1.51 

 1.16 

 6.38 

 .159 

 .069 

 .499 

 .478 



.117 



.128 

 .213 

 3,08 



30.9 % 



9.56 



17.56 

 41.40 

 14.5 



.065 

 .311 

 .779 

 .988 

 .79 

 4.35 

 .201 

 .067 



.231 



201 (m) 



30 cm. 

 2310 cc. 



31.86% 

 9.52 



17.49 



41.13 



13.91 

 .143 

 .065 

 .212 

 1.08 

 .909 

 .688 

 2.0 

 .108 

 .054 

 .286 

 .26 



.087 



.087 

 .273 

 3.98 



234 (m) 



31 cm, 

 2727.1 cc. 



25.8 % 27.09% 



202 (m) 



35 cm. 

 3470 cc. 



10.18 



20.16 

 40.12 

 13.12 



.054 



.66 



.59 



4.84 

 .24 

 .12 

 .37 

 .41 



.118 



.138 

 2.82 



9.65 



19.31 

 43.95 

 11.10 

 .075 

 .110 

 .320 

 .72 

 .778 

 .576 

 4.61 

 .188 



.231 



.228 



198 (m) 



36cm. 



26.9 % 



9.14 



.84 



.12 



.48 



.091 



.065 



.149 



