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In the teaching of human anatomy various authors have stated that the base knowledge of the human body is the cadaver. Learning anatomy through manipulation of the body contributes greatly to understanding shape, location, relationship, space and distance of various organs and structures of the human body. Faculty of Medicine students of the Universidad de La Frontera in Temuco, Chile have the opportunity to work with cadavers and anatomical models in the laboratory. In order to identify the representation students have while working with both resources, we conducted a qualitative study based on the Natural Semantic Networks technique. The sample consisted of 66 medical degree students, and 40 nutrition and diet degree students. Two sessions were conducted with students of each career. During the first survey they were given a survey form with the stimulus word "Anatomy Cadaver", and in the other session the stimulus word "Anatomy-Model'. In the analysis data technique values were obtained: J, M, SAM and FMG set. For both groups of students the ability to work with the cadaver resource meant: study, body learning and knowledge; furthermore for the group of medical students the meaning of respect, science and dissection work were noted. In reference to the anatomical model resource it also meant: study, surreal, false, invariable and easier. We noted that both resources met the goal of being a tool which allows the students to study, however, with important conceptual differences of both resources. [ABSTRACT FROM AUTHOR]

Whether laser therapy is widely used in healing therapies of injured muscle, there are no reports about its morphological effects on healthy muscle. A morphometrical and stereological study was performed with healthy Sprague Dawley rats, all irradiated with AsGa laser directly on the skin of the gastrocnemius muscle belly area for ten days, using three different daily doses on groups of five rats 0,8 (A1 y A2), 2 (B) y 5 (C) joules/cm² on the left posterior limb. The right limb was no irradiated, so it was used as control. The muscle fiber area was determinate by point counting (morphometry) on group A1. Density of connective tissue contain (Vvtc) was determinate by M42 test (stereology) on A2, B and C group. The analysis of all the 500 fiber areas obtained from Al group muscles and 500 fiber areas from its control muscles show that the mean fiber area was 15 13±376 mm² for laser treated gastrocnemius muscles and 1146±286 mm² for non irradiated control gastrocnemius muscles. Regression analysis showed that the fiber area was higher on treated muscles (p<0,001). Stereological analysis of Vvtc results showed no significance difference between treated and control muscles in none of the used doses (p=0.07). AsGa laser therapy produce morphological effects on healthy muscle. [ABSTRACT FROM AUTHOR]