Lozada-Gallegos Angel Raymundo, Muñoz-García Claudia Irais, Villanueva-García Claudia, Rocha-Martínez Nadia, Ovando-Fuentes David, Trejo-Salas Martha Beatriz, Reyes-Delgado Fausto, Rendón-Franco Emilio
Departamento de Producción Agrícola y Animal, Universidad Autónoma Metropolitana, Unidad Xochimilco, Ciudad de México, México.
Departamento de Morfología, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad de México, México.
J Zoo Wildl Med. 2020 Jun;51(2):265-274. doi: 10.1638/2018-0047.
The thoracic limb anatomy of anteaters in the family Myrmecophagidae is specialized for accessing termite and ant nests and for defense purposes. In the case of the northern tamandua (), the forelimbs are also adapted for arboreal and terrestrial locomotion. Unfortunately, this species faces many conservation threats, such as habitat loss and traffic accidents, and injured individuals are frequently taken to wildlife rehabilitation centers. However, lack of knowledge of the radiographic osteoanatomy of this species may prevent appropriate management of injuries and thereby reduce the chances of successful release and survival. In order to fill this knowledge gap, this article describes for the first time the radiographic anatomy of the thoracic limb of the northern tamandua using four standard views and one additional view. The additional orthogonal view helps visualize structures, such as the hamatus process and the sesamoid bone, that are otherwise difficult to visualize due to the natural forearm position of anteaters. Additionally, some fractures and physeal growth plates were identified in one juvenile individual. Further radiographic investigations should be conducted on anteaters to provide more tools for diagnosis, treatment, and rehabilitation of these animals.
食蚁兽科食蚁兽的胸肢解剖结构专门用于进入白蚁和蚂蚁巢穴以及用于防御。就北方小食蚁兽(Tamandua mexicana)而言,其前肢还适应于树栖和陆地运动。不幸的是,该物种面临许多保护威胁,如栖息地丧失和交通事故,受伤的个体经常被送往野生动物康复中心。然而,缺乏对该物种放射影像学骨解剖学的了解可能会妨碍对损伤的恰当处理,从而降低成功放归和存活的几率。为了填补这一知识空白,本文首次使用四个标准视图和一个附加视图描述了北方小食蚁兽胸肢的放射影像学解剖结构。该附加正交视图有助于可视化一些结构,如鹰嘴突和籽骨,由于食蚁兽前臂的自然位置,这些结构在其他情况下难以可视化。此外,在一只幼年个体中发现了一些骨折和骨骺生长板。应对食蚁兽进行进一步的放射影像学研究,以便为这些动物的诊断、治疗和康复提供更多工具。