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 ...

Refine your surgical techniques and interact one-on-one with world-class surgeons at Saint Louis University’s Practical Anatomy and Surgical Education program. Learn the latest surgical techniques ...

The CBD creams we’ve found to be most effective for pain tend to have other ingredients that create a cooling sensation for pain relief. It’s hard to say which ingredient is offering the bulk of the ...