http://www.indiana.edu/~anat215/ Basic human anatomy offered online. See lecture outline, lab resources for tissues, and online links to other anatomy courses.
http://www.histology.wisc.edu/histo/uw/htm/ttoc.htm Light microscopy photographs of everything histological in the human body. Tissue are labeled and unlabeled for quizzing purposes. If you need to study tissues, check out this web site from the University of Wisconsin.
http://www.medicalstudent.com/ A digital library of authoritative medical information for all students of medicine. This is a mind boggling list of schools which have presented medical topics of everything imaginable and made it free for you to study. Good luck.