Naked diagrams of human bodies and drawing biological structures

For many medical/biology classes and for the sake of knowledge, students are asked to learn about the human body, while looking at naked pictures (drawn) for both male and female. Additionally, students are also asked to draw body parts and cell structure, in order to know and understand how the whole structure is designed. What's the Islamic position on these 2 issues with regards to the view of tasweer (drawing body parts) and the perspective of viewing drawn awrah? ....all for the sake of knowledge.