Figure 1

Screen captures of the interface for histology teaching program at TMMU. The top screen shows the navigation tool that uses a Palm Pilot as a metaphor to navigate through the content of the program. The ‘virtual slides’ can be viewed from personal computers with a web browser (a). The window consists of a main viewing area with a mini-map to provide a navigational overview. The user can use the toolbar at the top, including 4×, 10×, 20×, 40×, 100× and X × (b), to manipulate the image on the computer screen by zooming in and out of the virtual slide displayed in the upper-left-hand corner; the user can adjust for contrast and brightness in the right-hand corner (c–f). Regions of special interest (ROI) were indicated and some annotations added (g). The possibility to determine the size of an object is helpful, especially in determining the size of entire specimens.