Transmission Electron Microscopic Characterization of Platelets and Erythrocytes in Dog (Canis lupus familiaris)

Abstract

Ultrastructurally the platelets were non-nucleated, elongated, irregularly rounded, and club shaped. The platelets were differentiated into peripheral, sol-gel and granular zone. The peripheral zone was composed of cell membrane and cytoplasmic matrix whereas the sol-gel zone had different shaped and sized vacuoles. The granular zone comprised of few organelles and different types of granules. Three types of granules were seen in granular zone. One type of granules was moderately electron dense and round to irregular in shape, second type of granules was electron lucent with electron dense spot and third type were comparatively electron dense with electron lucent patched and smaller size. The erythrocytes were elongated and curve in shape and devoid of cytoplasmic organelles.