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The Embryonic Disk Overview Structure & content Study tools Technical notes For teaching staff New in this version Users & comments


Text and images
© Jeremy Cook 1997–2008



Hypertext glossary

Primary index list


Study tools : 1
Commentaries, glossary and 

Commentary boxes: the core text on each screen page is supplemented by notes, mini-essays and tables in pop-up viewers called More-boxes, of which there are now almost 400.

Each More-box is activated from a specific marker in the core text and may contain a footnote to the core text, a short essay on a pertinent clinical or socio-ethical theme, a summary of recent research findings, a hypertext link to another section, a link to a bibliographic reference, or almost any combination of these.

More-boxes pop up directly over the core text, leaving all diagrams and photographs accessible.

Glossary definitions: we are far ahead of any paper-based textbook in defining our terms. All the vital embryological jargon in the text is hotlinked directly to definitions in a 1060-phrase hypertext glossary with full internal hotlinking.

From each highlighted term, the student can follow a chain of definitions just as far as necessary, at the click of a mouse, without losing the original place in the text.

This considerably reduces one of the major obstacles to the initial study of embryology, namely its large, specialized and arcane vocabulary.

The glossary definitions are also available from an alphabetical list.

Two-level index: the primary index is an alphabetical list, which is cross-linked to a set of more than 2000+ entries in an independent floating Index Links window. These entries, in turn, bring up relevant text, diagrams and animations in the main window. By having these two levels, it becomes possible to group related topics together and handle synonyms efficiently.