Learning anatomy through Thiel‐ vs. formalin‐embalmed cadavers: Student perceptions of embalming methods and effect on functional anatomy knowledge

Thiel‐embalmed cadavers, which have been adopted for use in anatomy teaching in relatively few universities, show greater flexibility and color retention compared to formalin‐embalmed cadavers, properties which might be considered advantageous for anatomy teaching. This study aimed to investigate student attitudes toward the dissection experience with Thiel‐ compared to formalin/ethanol‐embalmed cadavers. It also aimed to determine if one embalming method is more advantageous in terms of learning functional anatomy through the comparison of student anterior forearm functional anatomy knowledge. Student opinions and functional anatomy knowledge were obtained through use of a questionnaire from students at two medical schools, one using Thiel‐, and one using more traditional formalin/ethanol‐embalmed cadavers. Both the Thiel group and the formalin group of students were surveyed shortly after completing an anterior forearm dissection session. Significant differences (P‐values <0.01) in some attitudes were found toward the dissection experience between cohorts using Thiel‐ vs. formalin‐embalmed cadavers. The Thiel group of students felt more confident about recognizing anatomy in the living individual, found it easier to identify and dissect anatomical structures, and indicated more active exploration of functional anatomy due to the retained flexibility of the cadaver. However, on testing, no significant difference in functional anatomy knowledge was found between the two cohorts. Overall, although Thiel embalming may provide an advantageous learning experience in some investigated areas, more research needs to be carried out, especially to establish whether student perception is based on reality, at least in terms of structure identification. Anat Sci Educ 11: 166–174. © 2017 American Association of Anatomists.     

A technique to perfuse cadavers that extends the useful life of fresh tissues: The Duke experience

The demand for laboratory‐based teaching and training is increasing worldwide as medical training and education confront the pressures of shorter training time and rising costs. This article presents a cost‐effective perfusion technique that extends the useful life of fresh tissue. Refrigerated cadavers are preserved in their natural state for up to 45 days with a daily working period of ten hours. Tissues maintain their color and natural consistency throughout this period. This new process for preservation of tissue opens the door to improved surgical training and to numerous research opportunities. Anat Sci Educ. © 2010 American Association of Anatomists.     

Ethanol-glycerin fixation with thymol conservation: a potential alternative to formaldehyde and phenol embalming

Anatomical fixation and conservation are required to prevent specimens from undergoing autolysis and decomposition. While fixation is the primary arrest of the structures responsible for autolysis and decomposition, conservation preserves the state of fixation. Although commonly used, formaldehyde has been classified as carcinogenic to humans. For this reason, an adequate substitute was developed. Ethanol-glycerin fixation and thymol conservation are described and compared with formaldehyde and phenol in this technical report. The setup, tissue qualities, financial aspects, and health concerns of this method are discussed. Ethanol-glycerin fixation and thymol conservation provide outstanding haptic and optic tissue qualities. Typical formaldehyde and phenol effects, such as skin, airway, and eye irritation, as well as carcinogenic effects, can be circumvented by using ethanol-glycerin and thymol instead. Ethanol-glycerin fixation is more expensive than formaldehyde and requires an explosion-proof facility. However, the absence of health effects and its convincing tissue qualities balance these higher costs. Therefore, ethanol-glycerin fixation and thymol conservation provide a potential alternative and complement established fixation techniques. The use of carcinogenic formaldehyde and toxic phenol can be effectively restricted through the use of the described method.     

Development of a didactical training concept for peer tutors in gross anatomy

Even though peer tutors are often used in gross anatomy courses, research in the field is rather a subject of the last two decades. This is especially true about the didactical challenges these types of peer tutors experience during their tutorials and about how they are prepared for the task. The aim of the presented study was to learn about the training needs of the tutors, and to subsequently design, implement, and evaluate a didactical training concept. A qualitative design was chosen to examine how tutors can best be prepared for tutorials of gross anatomy. To do so, focus group interviews were conducted. The data were analyzed and grouped into various concepts, using semi‐structured interview questions as guidance. It was found that peer tutors are in need of training in the following aspects: Dealing with students who are experiencing difficulties during or as a result of dissection, dealing with group dynamics, that is, at the dissection table, keeping students motivated, time management, and staying confident as a tutor. In order to be regarded as useful and relevant in the eyes of tutors, a preparatory training course should include all these aspects in addition to general didactical training elements. Training needs of peer tutors of gross anatomy go beyond the content of standardized didactical curricula; therefore, tutors should be prepared with a curriculum that is specifically geared toward the many challenges associated with teaching gross anatomy to first year medical students which are already so well documented in the research literature. Anat Sci Educ 10: 495–502. © 2017 American Association of Anatomists.     

A simple and efficient device for demonstrating cross‐sectional anatomy of the head

Described in this article is a novel device that facilitates study of the cross‐sectional anatomy of the human head. In designing our device, we aimed to protect sections of the head from the destructive action of handling during anatomy laboratory while also ensuring excellent visualization of the anatomic structures. We used an electric saw to create 15‐mm sections of three cadaver heads in the three traditional anatomic planes and inserted each section into a thin, perforated display box made of transparent acrylic material. The thin display boxes with head sections are kept in anatomical order in a larger transparent acrylic storage box containing formaldehyde solution, which preserves the specimens but also permits direct observation of the structures and their anatomic relationships to each other. This box‐within‐box design allows students to easily view sections of a head in its anatomical position as well as to examine internal structures by manipulating individual display boxes without altering the integrity of the preparations. This methodology for demonstrating cross‐section anatomy allows efficient use of cadaveric material and technician time while also giving learners the best possible handling and visualization of complex anatomic structures. Our approach to teaching cross‐sectional anatomy of the head can be applied to any part of human body, and the value of our device design will only increase as more complicated understandings of cross‐sectional anatomy are required by advances and proliferation of imaging technology. Anat Sci Educ 2010. © 2010 American Association of Anatomists.     

Developing observational skills and knowledge of anatomical relationships in an art and anatomy workshop using plastinated specimens

One of the strong trends in medical education today is the integration of the humanities into the basic medical curriculum. The anatomy program is an obvious choice for using the humanities to develop professionalism and ethical values. They can also be used to develop close observational skills. Many medical schools have developed formal art observation training in conjunction with nearby art museums to enhance the visual diagnostic skills of their medical students. We report here on an art and anatomy workshop that paired medical and art students who did drawing exercises from plastinated anatomical specimens and the animated face to hone observational skills. Each member of the pair brought a different perspective and expertise to the work that allowed each to be a mentor to the other. The workshop had three sessions: the first involved drawings of plastinated specimens that allowed an intimate experience with authentic human material; the second involved drawings of the human face; and the third included examination of anatomical texts of important anatomist-artists, a lecture on contemporary artists whose work involves anatomy, and a film demonstrating the facial muscles. We propose workshops such as these will help students increase their ability to detect details. This will assist the medical student in developing diagnostic skills for identifying disease and the art student in using the human body as subject. We further propose that these programs will help students develop humanistic sensitivities and provide an outlet for expression of the emotional aspects of dealing with disease and mortality.