The example demonstrates an interactive image with an automatically graded text-input answer.
Identify the blue-starred muscle. Tap on the image to toggle the outer layer of muscles removed from the image. Enter your answer in the blank and tap on the "Check" button to grade your answer. OR - Tap on the "reveal" button to show the correct answer and observe a pop-up image of the isolated muscle attachment points.
I use this type of format a lot for my students for class and lab prep, and review for exams. They can just tap the "reveal" button for a quick answer or they can test themselves more stringently with a text entry answer.