| phren | Synonym: diaphragm. 2. The mind. Origin: G. Phren, the diaphragm, mind, heart (as seat of emotions) (05 Mar 2000) |
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| phrenalgia | Synonym: psychalgia. 2. Pain in the diaphragm. Origin: phren-+ G. Algos, pain (05 Mar 2000) |
| phrenectomy | Exsection of a portion of the phrenic nerve, to prevent reunion such as may follow phrenicotomy. Synonym: phrenectomy, phrenicoexeresis, phreniconeurectomy. Origin: phreni-+ G. Ektome, excision (05 Mar 2000) |
| phrenemphraxis | Synonym: phreniclasia. Origin: phren-+ G. Emphraxis, a stoppage (05 Mar 2000) |
| phrenetic | 1. Frenzied; maniacal. 2. An individual exhibiting such behaviour. Origin: G. Phrenitikos, frenzied (05 Mar 2000) |
| phreni- | See: phreno-. (05 Mar 2000) |
| phrenic | <anatomy> Of or pertaining to the diaphragm; diaphragmatic; as, the phrenic nerve. Origin: Gr, the midriff, or diaphragm, the heart, the mind: cf. F. Phrenique. Source: Websters Dictionary (01 Mar 1998) |
| phrenic ampulla | A physiologic localised dilatation of the distal oesophagus, commonly demonstrated by oesophagography. (05 Mar 2000) |
| phrenic ganglia | Several small autonomic ganglia contained in the plexuses accompanying the inferior phrenic arteries. Synonym: ganglia phrenica. (05 Mar 2000) |
| phrenic nerve | <anatomy, nerve> The motor nerve of the diaphragm. The phrenic nerve fibres originate in the cervical spinal column (mostly c4) and travel through the cervical plexus to the diaphragm. (12 Dec 1998) |
| phrenic nucleus | A nucleus comprised of motor neurons located in medial areas of the ventral horn of the spinal cord from about C3 to C6; axons of neurons in this nucleus innervate the diaphragm. (05 Mar 2000) |
| phrenic pleura | The layer of parietal pleura covering the upper surface of the diaphragm, except along its costal attachments and where it is covered with the pericardium. Synonym: pleura diaphragmatica, phrenic pleura, pleura phrenica. (05 Mar 2000) |
| phrenic plexus | Plexus phrenicus, an autonomic plexus surrounding the inferior phrenic artery. (05 Mar 2000) |
| phrenic pressure test | Pressure is made on the phrenic nerve on each side, above the clavicles where the nerve passes over the scalenus anticus muscle; if pain is felt and the patient inclines his head to the painful side, the problem is in the pleural space; if his head does not incline to one side, the problem is in the abdominal cavity. (05 Mar 2000) |
| phrenic veins | See: inferior phrenic vein, superior phrenic veins. (05 Mar 2000) |