Looping through all images in a folder

Hello!
I don't know if it's even possible, but for my survey, I need every step to contain one image, followed by two questions with sliders.
That way, participants can rank the image they're seeing. Then, I need to change the image to a different one and ask those two questions again. Then change the image again and so on..
Problem is, I have 320 images, so doing it manually is not really an option.
Is there a way to create a code that access the Graphics Library, so that I can put all my images in there and then every loop will pull one image from there? (and every image needs to be presented only once)
Thank you!