Comparative Morphological and Histological Study of the Parotid Salivary Gland in Rabbit after Birth

Abstract

This study was carried out on 24 healthy rabbits of both sexes, divided to four age groups 1 day, 15days, 30 days and 90 days to elucidate the normal morphology and histology during four age groups above. Parotid salivary gland observed relatively large and consists of two lobes right, and left separated entirely. The right lobe is oval while the left is irregular, both them were located on both sides of the two ramus of mandible. The color of the parotid gland is creamy pink; there was significant increase in absolute and relative weight as well as the length, width, thickness increase with age, the right lobes are longer, wider and thicker than right lobes in all age groups except at 90 days age. Histologically, the gland is surrounded by capsule send septi divided the parenchyma into lobules which composed of serous ; acinus units ; striated ducts and intercalated ducts. The histological picture of the gland developed with age in the four developed age groups.