I use Crash Course Anatomy videos quite often in my Anat and Phys class. This is my write-a-long, or WAL as I call them, for their video on the brain. Technically it comes from their "Psychology" set of videos, but it works very well for my class, too!
My WAL is broken into the sections shown within the video (introduction, refresher on nervous system, evolution of the brain, parts of the brain) and is mainly fill-in-the-blank with a couple longer, "apply what you know" deeper-type questions.
Please note that there is no key included with this product. It's good for you to watch the video so you know what your students will see, anyway :)