Anatomical images are physically accurate representations of the organs, skeleton, muscles, circulatory system and every other part of the human body. They provide a visual dictionary that allows the study of the body without dissection. Though the latter is required in advanced anatomy studies, skillfully rendered drawings provide an acceptable study aid.
For example, in Merriam-Webster's Visual Dictionary Online, Merriam-Webster.com, the different parts of the body have written descriptions and links to detailed drawings of those parts. Some of the more complicated parts of the body, such as the skeleton and the circulatory system, have multiple sections.
The site illustrates the skeleton via anterior view, posterior view, the various limbs, types of bones and the skull. Clicking on the hand button brings up a detailed drawing with all of the bones labeled. Below it are detailed descriptions of each bone, including further images when needed. The distal phalanges description has a finger button. Pressing that pulls up a detailed drawing of the parts of a finger.
The circulatory system consists of four sections: the principal veins and arteries, the routes of circulation, the heart and the composition of the blood. The latter section brings things down to the microscopic level. The anatomical image covers the blood vessel and its contents. The site illustrates and explains the role of the white and red blood cells, platelets and the plasma.