An official website of the United States government
SEER Training Modules
The SEER Training Website is a training resource for oncology data specialists (ODS) and cancer registration trainees. It is not intended to provide medical advice or to guide clinical care, diagnosis, or treatment. NCI urges users to consult with a qualified physician for diagnosis and for answers to their personal medical questions.
This section provides detailed information about cell structure and function, four basic types of tissue in the human body, and the different types of membranes found in the body.