The present study aimed to identify the characteristics of use of the deceased in invasive training and the bioethical principles that govern this practice. In this context, it has become imperative to deduce which professional skills are critical to develop. METHODS: A prospective study investigated a cadaver's use in medical (and related) schools through a questionnaire, which was made available for 48 hours on social networks (Facebook and LinkedIn) to groups of doctors and medical students using a communication app (WhatsApp). The inclusion criteria were being a medical student or a doctor. Cases in which the answers to the questionnaire were inadequate, or when the student had reason to withdraw, were excluded. Each participant could only answer the questionnaire once, and could not modify the responses after submitting it. RESULTS: A disproportionate relationship was found regarding the replacement of the newly deceased by other means (such as dummies and simulators). This outcome suggests that there is no substitution, concomitant with the importance of a prior request for consent from the patient and/or subsequent consent from family members. CONCLUSION: According to the findings, the significance of-and need for-training is undeniable. Hence, it is urgent to normalize the practice and definition of the ethical limitations of medical conduct.