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Interactive Prenatal Development Timeline Features

This timeline divides the prenatal period into 19 time periods, called Units. Each of the first 12 weeks is assigned its own Unit. Each 4-week period thereafter is also assigned its own Unit. Each Unit contains an event box adjacent to an appropriate point on the timeline. User-selectable timeline options allow creation of more than 3.1 million different timeline configurations, each of which can be saved by adding them to your favorites (Internet Explorer) or bookmarks (Firefox).

Standard Unit features allow users to:
Advanced timeline features allow users to select:
 

Play a movie

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Watch a clip from The Biology of Prenatal Development DVD by clicking Play Movie.
 

View the narrative for each movie Go to help page showing View narrative for each movie  Back to Top

This image shows how to view the narrative for each movie.

 

See high-resolution stills from each movie Go to help page showing how to see high-resolution stills from each movie  Back to Top

This image tells how to view high resolution labeled images in the timeline

 

Read more about each development event Go to help page showing how to read more about each development event  Back to Top

Select any development event to read related text in EHD's prenatal development article.

 

Take a visual quiz Go to help page to see how to take a visual quiz  Back to Top

Take a visual quiz by clicking Visual at the bottom of each fact box.

 

Take a text-only quiz Go to help page to see how to take a text-only quiz  Back to Top

Take a text-only quiz by clicking Text Only at the bottom of each fact box.

 

Expand/contract individual event box Go to help page to see how to Expand/contract individual event box  Back to Top

This image shows how to Expand or collapse individual event boxes on the timeline.

 

Level of Difficulty Go to help page to see how to change the Level of Difficulty  Back to Top

This image shows how to choose the Level of Difficulty of your timeline.

 

Expanded or contracted Event Boxes Go to help page to see how to Expand or contract Event Boxes  Back to Top

This image shows how to Expand or Collapse all event boxes simultaneously.

 

Individual body system/region options Go to help page to see how to choose Individual body system/region options  Back to Top

Recreate the timeline with the body system(s) and/or region(s) of your choice

 

Footnotes Go to help page to learn about footnotes for this page  Back to Top

Image that shows how to include footnotes for each development event.

 

Bibliography Go to help page to learn about the Bibliography for this page  Back to Top

Features of the Bibliography section of the Timeline.

 

Multilingual capability Go to help page to learn about the timelines Multilingual capability  Back to Top

Multilingual capability of the timeline