THE PECULIARITIES OF KIDNEY AND CALYCEAL-PELVIC SYSTEM GROWTH DURINGTHE FETAL PERIOD AND IN THE EARLY HUMAN POSTNATAL ONTOGENESIS
A V Stabredov , I A Usmanov , A V Stabredov , I A Usmanov
Morphology ›› 2009, Vol. 135 ›› Issue (1) : 43 -45.
THE PECULIARITIES OF KIDNEY AND CALYCEAL-PELVIC SYSTEM GROWTH DURINGTHE FETAL PERIOD AND IN THE EARLY HUMAN POSTNATAL ONTOGENESIS
The objective of this study was to analyze the peculiarities of kidney growth and calyceal-pelvic system (CPS) development during the prenatal and early postnatal ontogenesis. The study included 166 kidneys of the fetuses of both sexes aged 13-40 weeks, 18 kidneys of the newborn infants and 98 kidneys of 58 children aged from birth to 7 years. 110 CPS casts were also prepared. It was found that the kidney growth had periods of acceleration (weeks 12-13, 27-28 and 39-40 of fetal development, neonatal period, breast-feeding age) and deceleration (23-26, 32-33 weeks, first childhood). The volume growth of kidney CPSs system in newborns and infants preceeded the growth of organ parenchyma.
kidneys / renal calyces / renal pelvis / fetuses / children
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