For audiovisual sources, try these sites:
"MedlinePlus will direct you to information to help answer health questions. MedlinePlus brings together authoritative information from The National Library of Medicine (NLM), the National Institutes of Health (NIH), and other government agencies and health-related organizations."
For audiovisual materials, click on the Videos and Cool Tools page (http://www.nlm.nih.gov/medlineplus/videosandcooltools.html).
Consumer Health Complete
"Consumer Health Complete (CHC) is a comprehensive resource for consumer-oriented health content, including full text from many health reference books and encyclopedias and thousands of health reports as well as physician-generated videos and hundreds of medical images and diagrams. This full-text database covers topics such as aging, cancer, diabetes, drugs and alcohol, fitness, nutrition and dietetics, children's health, men and women's health, and more."
For audiovisual materials, click the Videos and Animations link within the database.