The word "phrenic" refers to something related to the mind or brain. It is often used in medical terms to describe conditions or functions associated with the diaphragm, which is a muscle involved in breathing. Full definition
The remede ® system uses unilateral transvenous phrenic nerve stimulation to prevent CSA before it occurs. (sciencedaily.com)
The sympathetic nervous system and phrenic intercostal neuronal interconnectivity mediates respiratory recovery following cervical cord injury (goldenhelix.org)
Professor Abraham said: «The device stimulates the diaphragm via the phrenic nerve, causing the diaphragm to contract. (sciencedaily.com)