A description of all BMED courses can be found here: http://catalog.gatech.edu/coursesaz/bmed/

Twelve hours of engineering depth elective hours are required. Up to six hours of research for credit (BMED 2699/4699) will be allowed to count as BMED depth elective credit, see “Research” for additional information. Depth elective courses may also be selected from those that include significant engineering component or from the list of approved courses other majors.