Why renal cortex shows dotted appereance?

The dotted appearance of the renal cortex is primarily due to the presence of renal corpuscles and the numerous convoluted tubules. The glomeruli, which are part of the renal corpuscles, appear as small, round structures, while the proximal and distal convoluted tubules create a mosaic of different cell types and structures. This pattern is accentuated by the varying sizes and shapes of the tubules and glomeruli, contributing to the distinct dotted visual effect observed in the renal cortex under microscopic examination.