AnatQuest: Anatomic Images Online: The U.S. National Library of Medicine's Visible Human Project has produced high resolution cryosectional color images of human anatomy.
Cells Alive: Images, interactive diagrams and animations pertaining to cell biology, microbiology, immunology and microscopy.
ClinicalKey: Images: 2.2 million+ medical images for use in presentations and handouts.
ClinicalKey: Procedure Consult Images: Procedures Consult articles (300+) each include detailed video, text and illustrations covering top medical procedures, with a focus on patient safety guidelines.
Embryo Images - Normal and Abnormal Mammalian Development: Uses scanning electron micrographs (SEMs) as the primary resource to teach mammalian embryology.
The Internet Pathology Laboratory for Medical Education: Contains over 2,000 images with text, 2,000+ examination items and more than 20 tutorials in specific subject areas.
JayDoc HistoWeb: Tissue slides of cell structure, epithelia, glands, nervous system, muscles, and more.
NCI Visuals Online: A collection of 3,426 images spans everything from biomedical, science, and patient-care related illustrations and images to portraits of present and past directors and the staff of the National Cancer Institute.
Netanatomy: An online resource including cross-sectional images, x-rays and a breakdown of anatomical terminology.
NLM's Digital Collections: The National Library of Medicine's free online resource of biomedical books and still and moving images.
Open-i: Open Access Biomedical Image Search Engine: Enables search and retrieval of abstracts and images (including charts, graphs, clinical images, etc.) from the open source literature, and biomedical image collections.
PathoPic: A public access image database providing images of high quality for use in medical education and public health information.
Public Health Image Library (PHIL): Offers an organized, universal electronic gateway to CDC's pictures.
Virtual Human Embryo (VHE): This 14,250-page, illustrated atlas of human embryology, presents all 23 Carnegie Stages of development during the 8-week embryonic period.
Visible Human Project: The Visible Human Project was established in 1989 to build a digital image library of volumetric data representing adult male and female anatomy.
Wellcome Library: Images: Free images are those available completely free-of-charge in high resolution under a CC-BY licence.