A special type of hyperlink is a 'hotspot'.
A hotspot is where part of an image is set up as a hyperlink. As you hover the mouse over the hotspot, the cursor usually changes to a hand or something else to indicate that a link is available.
Clicking on the hotspot might take you to another part of the presentation or it might pop up a more detailed view of the image.
Examples of the use of hotspots in presentations:
A map of the United States. When you click on one of the states, a more detailed map of that particular state pops up.
An image of the human body. When you click on a section, perhaps the heart, you are taken to a slide containing a video and more information about the heart.
challenge see if you can find out one extra fact on this topic that we haven't already told you
Click on this link: Hotspots