histological and histomorphometric examinations of rat adrenals after a 7-day flight revealed the following changes : blood congestion in the cortex and medulla , progressive delipoidization of the cortex , slight enlargement of the nuclear volume of glomerular and fascicular zones , vacuolization of the cytoplasm of medulla cells , reduction of the area of noradrenocyte islets and cell nuclei of the medulla ;
C0007634
cells
C0007610
cell nuclei of