Morphological aspects of eyeball extrinsic muscles and other anatomical aspects in a tapir (Tapirus terrestris): Case report

The aim was to describe the morphological aspects of the eyeball and associated anatomical components of Tapirus terrestris. The study was performed with two heads, with unknown origin, donated to the Laboratory of Morphological studies of Veterinary Medicine College in Araçatuba city. SP. External aspects revealed similarities with other mammals; however, the orbit cavity has area of 20-mm3 ± 1.4 mm3 considered higher than horse per example. The description of eyeball muscles followed what has been described for other species, with origin and insertion defined.   Tapir is a mammal found in South America, and in almost all biomes, but with tiny literary information about macro and microscopic morphology. Thus, it justifies the choice of this species for the study, based on their macro morphological features, which, notably, are fundamental to the biological knowledge of the species. This kind of research contributes with relevant data about this species is still poorly studied.