Figure 23: Ultramicrograph of a section through joxtaglomerular complex of kidney of rat exposed to Cd Cl2 for 8 weeks, showing (1) Macula densa (Md)with elongated nucleus (N),prominent nucleoli(n)and cytoplasm contains many mitochondria(M),vacuoles (V)and lysosomes (broken arrows). (2) Joxtaglomerular cell (J.G) has rounded heterochromatic nucleus (N), nucleolus (n), many mitochondria(M), and pale ,vacuolated (V)protoplasm.The basal lamina (CM) of the seen cells is thick and enfolded. TEM mag. =6oooX.