To test flexor digitorum superficialis, one finger is flexed at the proximal interphalangeal joint against resistance, while the remaining three fingers are held fully extended (to inactivate flexor digitorum profundus).
Because we are too, obviously. Today Pixar Animation Studios announced updated release dates for each movie, so here they are so you can mark your calendars accordingly: The Incredibles 2 will come out June 15, 2018 and Toy Story 4 will come out June 21, 2019. Toy Story 4.
It was officially announced last summer that Pixar is developing an Incredibles 2 - but what hasn't been tremendously clear is exactly when we will be seeing the finished product. Sadly, after all this time we still don't have any firm details about the movie - but what we do now know is that the project has actually managed to leap-frog ahead of Cars 3.