If you looked on the classes server you saw Chapter 1, and Chapter 1 describes some of the sort or organization of Biomedical Engineering into sub-disciplines, which I've listed here.

如果你上过班级服务器就会看到第一章,第一章介绍了生物医学工程的,若干亚学科 像这里列出的这样

耶鲁公开课 - 生物医学工程探索课程节选