Hi everyone! Today's video is the fastest one minute cranial nerve exam! We will be testing vision, smell, feeling, and hearing. This was of course inspired by @LandonsASMR, and please check his ...

The phrenic nerve controls the diaphragm, the dome-shaped muscle that is primarily responsible for breathing. Contraction of the diaphragm expands the lungs and draws air into them. The phrenic nerve ...