Comparative anatomical study of the leg's nerves of Cebus (barbed capuchins) with baboons, chimpanzees and modern humans / Estudo anatômico comparativo dos nervos da perna de Cebus (macaco-prego) com babuínos, chimpanzés e humanos modernos

The anatomical comparative studies among the primates are important for the investigation of ethology, evolution, taxonomy, and comprehension of tools by hominoids. Especially the anatomical knowledge of Cebus contributes to conservation of the species, and to development of surgical procedures and clinical treatments of these animals, as they frequently are victims of automobile accidents. Recent anatomical studies came to a wrong conclusion regarding behavioral traits of Cebus, ascribed to few data available in previous literature. Therefore, to provide anatomical data and to support the other sciences related to anatomy, and to develop surgical and/or clinical procedures, we described the nerves of the legs of Cebus foccusing on their position and trajectory, as wll as innerved muscles, and compared these results with those of humans and other primates. Eight adult capuchin specimens were used for this study. The anatomical comparative study of the leg's nerves of Cebus demonstrated that, in general, structural organization of the nerves is similar among the four primates analyzed here (Cebus, chimpanzees, baboons and humans), which might be attributed to the fact that the all four primates have similar body structures. However, nerve trajectory and muscles innervation in Cebus was more similar to baboons.(AU)

Os estudos anatômicos comparativos entre os primatas são importantes para pesquisas associadas com a etologia, evolução, taxonomia e compreensão dos usos de ferramentas pelos hominídeos. Especificamente, o conhecimento anatômico sobre Cebus contribui para sua própria conservação e para o desenvolvimento de procedimentos cirúrgicos e tratamentos clínicos destes animais, pois são frequentemente vítimas de acidentes automobilísticos. Recentemente, estudos sobre características comportamentais de Cebus indicaram conclusões erradas sobre sua anatomia, o que pode ser atribuído aos poucos dados disponíveis sobre a anatomia desses animais na literatura especializada. Portanto, para fornecer dados anatômicos e fornecer suporte para as outras ciências relacionadas com a anatomia e também desenvolver procedimentos cirúrgicos e/ou clínicos, foram descritos os nervos das pernas de Cebus com enfoque sobre a posição, a trajetória e os músculos inervados, e comparar esses resultados com os dos humanos modernos e outros primatas. Oito espécimes adultos de macacos-prego foram usados para este estudo. O estudo anatômico comparativo dos nervos da perna de Cebus demonstrou que, em geral, a organização estrutural dos nervos é semelhante entre os quatro primatas aqui analisados (Cebus, chimpanzés, babuínos e humanos modernos), o que pode ser atribuído ao fato de que os quatro primatas terem estruturas corporais semelhantes. No entanto, a trajetória dos nervos e a inervação dos músculos em Cebus o aproximam dos babuínos.(AU)

Historic and teaching aspects of anatomy and Cebus genus role in Ccntemporary anatomy / Aspectos históricos y de enseñanza de la anatomía y el papel del género Cebus en la anatomía moderna

Anatomy is the science that studies the body and a basic discipline in health and biological sciences indispensable to students that study this area, and plays a important role in the comparison of species. Nowadays anatomy is falling into academic and scientific crisis. Recently, the number of papers and reviews on health science education have increased considerably. Pre-clinical disciplines are essential for all health and biological science courses; among them anatomy is considered to be the basis of morphological sciences. For that reason, throughout history, this discipline has been viewed as a factual knowledge base that must be learned in its entirety. History of anatomy demonstrated that teaching in this area is facilitated by the use of dissection of both animal and human disciplines. In absence of human cadavers, it is possible to use animals for dissection for the benefits of students. The aim of this paper is to serve as a reminder to understand that anatomy is the basis of current health science and to realize what is important in the teaching of anatomy. It is also important to learn anatomy since researchers sometimes draw wrong conclusion because of lack of anatomical knowledge.

La anatomía es la ciencia que estudia el cuerpo y una disciplina básica en ciencias de la salud y biológicas, indispensables para los estudiantes que tratan esta materia, teniendo además, un importante papel en la comparación de las especies. Actualmente, la anatomía está en una crisis académica y científica. Por otra parte, recientemente, el número de artículos y revisiones en la educación en ciencias de la salud han aumentado considerablemente. Las disciplinas pre-clínicas son esenciales para todos los cursos de salud y ciencias biológicas, entre ellas, la anatomía es considerada como la base de las ciencias morfológicas. Por esa razón, a lo largo de la historia, la anatomía ha sido considerada como una base de conocimiento de los hechos que deben ser aprendidas en su totalidad. La historia de la anatomía ha demostrado que la enseñanza en esta área se ve facilitada por el uso de la disección de animales. En ausencia de cadáveres humanos, es posible utilizar los animales para la disección, generando así beneficios para los estudiantes. El objetivo de este trabajo fue recordar el pasado para entender que la anatomía es la base de la ciencia de la salud actual y darse cuenta de la importancia de la enseñanza de esta disciplina. Finalmente, es importante recordar que los investigadores algunas veces han llegado a conclusiones erróneas debido a la falta de conocimiento sobre temas anatómicos.

Teaching embryology using models construction in practical classes / La enseñanza de embriología usando la construcción de modelos en las clases prácticas

Recently, the curriculum and the educational methodologies associated with health sciences courses are being reviewed and adapted. Pre-clinical sciences, such as anatomy and embryology are as well subjected to those changes. In human embryology courses it is common to use models to represent the different phases of development to facilitate learning, since the students can see and touch the models, obtaining knowledge by analogies. The purpose of the present study was to investigate if the construction of models by the students during practical embryology classes would improve or facilitate their learning. One year after the classes, 60 students answered a questionnaire with nine objective questions, including spaces for suggestions and observations. The student's responses suggested that the construction of models contributed to their learning.

Recientemente, el plan de estudios y las metodologías educativas asociadas a los cursos de ciencias de la salud están siendo revisados y adaptados. Ciencias pre-clínicas tales como la Anatomía y la Embriología son también sometidas a cambios. En los cursos de Embriología Humana, es común el uso de modelos para representar las diferentes fases del desarrollo, y así facilitar el aprendizaje, ya que los estudiantes pueden ver y tocar los modelos, así se realiza la obtención de conocimientos por medio de analogías. El propósito del presente estudio fue investigar si la construcción de modelos por parte de los estudiantes, durante las clases prácticas de Embriología, mejora o facilita su aprendizaje. Después de un año, 60 estudiantes respondieron a un cuestionario con nueve preguntas objetivas, incluidos los espacios para sugerencias y observaciones. De acuerdo con las respuestas de los estudiantes, la construcción de modelos han contribuido a su aprendizaje.