Análise da estrutura macro e microscópica das glândulas salivares parótidas em duas espécies de procionídeos:

Abstract

The coati (Nasua nasua, Linnaeus, 1766) with daytime habits and the hand-pelada (Procyon cancrivorus, G. Cuvier, 1798) with twilight and nighttime habits, are terrestrial mammal species, belonging to the procionid family that are widely found in the Brazilian territory. For this work, three coatis and two hand-peeled adults from the Scientific Creation-CECRIMPAS of the University Center of the Fundação de Ensino Octávio Bastos (IBAMA 02027.003731 / 04-76) were used. These animals had already been euthanized and used in other research prior to ours. For this research, the parotid salivary glands of coatis and hand-peeled were identified, dissected, extracted, processed and prepared for observation under the optical microscope in the hematoxylin and eosin stains, picrossirius and photocumented. Macroscopically in each of the coatis and hand-peeled, a pair of parotid glands located below the parotid-auricular muscle, ventral to the auricular cartilage, can be seen, where it is in contact with the mandibular glands that are partially covered by the parotid glands. Microscopically, the parotid glands are multilobulated and are constituted by serous acini (parotid) in the coatis. The lobes of the coatis and hand-peeled parotid glands have striated intralobular ducts, lined by simple prismatic epithelium, interlobular ducts that vary their epithelium from simple cubic to bi-stratified cubic and intercalated ducts lined by simple cubic epithelium. They are composed of serous acini, similarly to that of most domestic animals, men and rodents, and unlike the results found in young dogs, lambs and some carnivores such as the ferret that has mixed acinos and some carnivores, which have serous and mucous acinos in their constitution.