The trochlear nerve (cranial nerve IV) supplies one of the extraocular muscles: the superior oblique muscle. In this video, I discuss the anatomy and function of the trochlear nerve, as well as describe what can happen when the nerve is damaged.
Making neuroscience understandable to aspiring neuroscientists (and anyone else who is interested)
An educational neuroscience website that includes a wide selection of articles, videos, and images to help anyone learn more about neuroscience.
Neuroscientifically Challenged is a neuroscience learning resource. In addition to a blog that discusses science current events in a non-technical manner, you will also find a number of videos and articles that you can use to learn about basic principles of science and the brain.