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.
The Incredibles 2, Pixar's sequel that fans have been waiting 14 years to see, finally comes to theatres this June. Now we know more about the cast and story. Disney today announced what is presumably the full voice cast, along with more details on each of them.