Morphological tools to evaluate the digestory apparatus in rocky cavy (Kerodon rupestris)

Autor(es)

de Aro, Marian Mazeto ^[1] ; dos Santos, Amilton Cesar ^[1] ; da Silveira, Erick Eduardo ^[1] ; da Silva Lisboa Neto, Antonio Francisco ^[1] ; de Oliveira, Moacir Franco ^[2] ; de Assis Neto, Antonio Chaves ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Sect Anat Domest & Wild Anim, Sch Vet Med, Dept Surg, Ave Prof Dr Orlando Marques de Paiva, BR-05508270 Sao Paulo, SP - Brazil

^[2] Fed Rural Univ Semiarid, Dept Anim Sci, Mossoro - Brazil

• Tipo de documento: Artigo Científico
• Fonte: MICROSCOPY RESEARCH AND TECHNIQUE; v. 82, n. 6, p. 696-708, JUN 2019.
• Citações Web of Science: 0

Resumo

This research describes for the first time the complete morphology of the digestive apparatus of rock cavies. Dissection, light microscopy, and scanning electron microscopy were performed. The oral cavity has: the hard palate without palatine wrinkles and the soft palate; the tongue composed by striated musculature, with presence of vallate, foliated, and fungiform papillae with taste buds and filiform papillae with mechanical function; and, 20 teeth of the hypsodonts type. Esophagus, stomach, small intestine (duodenum, jejunum, and ileum), and the large intestine (cecum, colon, and rectum) are found. The anus is present at the end of the alimentary channel. Organs of digestive tube are composed by four tunics: mucosa, submucosa, muscular, and serosa. The duodenum, jejunum and ileum have villi. Jejunum, ileum and cecum present Lieberkuhn crypts. The cecum has mucous glands. Colon and rectum are folded and have goblet cells. Anus presents sebaceous glands. As associated glands it is found the liver with six lobes and gallbladder; a lobulated pancreas; and a pair of each major salivary gland (parotid, mandibular, and sublingual). Parotid glands have serous acini and mandibular and sublingual glands have mucous acini. Pancreas has adenomers. The liver has hepatocytes and portal vein, hepatic artery, and bile duct (portal triad), separated by sinusoids. It is concluded that the digestive apparatus of the rock cavy has variations in the dentition, lingual papillae, and acini of the salivary glands when compared to other rodents. Other variations refer to the well-developed cecum characteristic of herbivorous behavior. (AU)

• Processo FAPESP: 12/01322-9 - Morfologia do aparelho digestório do mocó (Kerodon rupestris, WIED, 1820): estudo anatômico, histológico e ultraestrutural
• Beneficiário: Marian Mazeto de Aro
• Modalidade de apoio: Bolsas no Brasil - Iniciação Científica