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 (2004) is the first, and thus far only, Pixar movie NOT to feature a distinct appearance of the Pizza Planet truck. Many people claim to have spotted it, but screen caps only show blurry, Rorschach test images, and nothing that can be clearly identified as the Pizza Planet truck.