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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 Lieberk\u00fchn 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\u2010developed cecum characteristic of herbivorous behavior.<\/jats:p>","DOI":"10.1002\/jemt.23216","type":"journal-article","created":{"date-parts":[[2019,1,24]],"date-time":"2019-01-24T18:05:55Z","timestamp":1548353155000},"page":"696-708","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Morphological tools to evaluate the digestory apparatus in rocky cavy (<i>Kerodon rupestris<\/i>)"],"prefix":"10.1002","volume":"82","author":[{"given":"Marian Mazeto","family":"de Aro","sequence":"first","affiliation":[{"name":"Department of Surgery, Sector of Anatomy of the Domestic and Wild Animals School of Veterinary Medicine, University of S\u00e3o Paulo  S\u00e3o Paulo Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0132-6198","authenticated-orcid":false,"given":"Amilton Cesar","family":"dos Santos","sequence":"additional","affiliation":[{"name":"Department of Surgery, Sector of Anatomy of the Domestic and Wild Animals School of Veterinary Medicine, University of S\u00e3o Paulo  S\u00e3o Paulo Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Erick Eduardo","family":"da Silveira","sequence":"additional","affiliation":[{"name":"Department of Surgery, Sector of Anatomy of the Domestic and Wild Animals School of Veterinary Medicine, University of S\u00e3o Paulo  S\u00e3o Paulo Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ant\u00f4nio Francisco","family":"da Silva Lisboa Neto","sequence":"additional","affiliation":[{"name":"Department of Surgery, Sector of Anatomy of the Domestic and Wild Animals School of Veterinary Medicine, University of S\u00e3o Paulo  S\u00e3o Paulo Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Moacir Franco","family":"de Oliveira","sequence":"additional","affiliation":[{"name":"Department of Animal Science Federal Rural University of the Semiarid  Mossoro Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6260-661X","authenticated-orcid":false,"given":"Ant\u00f4nio Chaves","family":"de Assis Neto","sequence":"additional","affiliation":[{"name":"Department of Surgery, Sector of Anatomy of the Domestic and Wild Animals School of Veterinary Medicine, University of S\u00e3o Paulo  S\u00e3o Paulo Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2019,1,24]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1644\/09-MAMM-S-405.1"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.11606\/issn.1678-4456.bjvras.2008.26713"},{"volume-title":"Color atlas of veterinary histology","year":"2012","author":"Bacha W. 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