Leydig Cells

Leydig cells (interstitial cells) are large, polygonal, eosinophilic cells that typically contain lipid droplets (Fig. 21.7). Lipofuscin pigment is also frequently present in these cells as well as distinctive, rod-shaped cytoplasmic crystals, the crystals of Reinke (Fig. 21.8). In routine histologic preparations, these crystals are refractile and measure approximately 3 X 20 |xm Although their exact nature and function remain unknown, they probably represent a protein product of the cell.

late spermatid early spermatid pachytene primary spermatocyte junctional complex basal lamina peritubular (myoid) cells type A dark cell spermatogonium spermatogonium

0 0

Post a comment