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GLOSSARY. 



Pharynx, </>apuy the throat ; the 

 part behind the nose, mouth, 

 and larynx, and above the oeso- 

 phagus. 



Phosphene, </> light, and (fraivo- 

 /xai I appear ; an appearance of 

 light produced by pressure on 

 the eye-ball. 



Phrenic, </>p??j/ the midriff; belong- 

 ing to the diaphragm; as the 

 phrenic nerve. 



Phrenology, Qpnv the mind, and 

 Xo'yos discourse ; a study of the 

 brain or skull, with a view to 

 discovering the mental qualities. 

 The particular theory originated 

 by Gall is usually meant. 



Physiology, <uo-is nature, and 

 Xo'yos discourse ; the study of 

 the operations which take place 

 in living beings. 



Pia mater, pious mother ; the 

 vascular covering which closely 

 invests the brain and spinal cord. 



Pineal, pinea a pine. The pineal 

 body is a portion of the brain 

 in front of the corpora quadri- 

 gemina, shaped something like 

 a fir cone, and also called cona- 

 rium, 



Pinna, a fin or a pinion ; the ex- 

 pansion of the external ear. 



Pisiform, pisum a pea ; the name 

 of one of the carpal bones. 



Pituitary, pituita phlegm. The 

 pituitary body is the name of a 

 structure at the base of the 

 brain, formerly looked on as a 

 gland. 



Placenta, a cake ; the after-birth. 



Plasma, TrXdo-^a a thing modelled. 

 Is used to signify material from 

 which structure is formed ; 

 thus, blood plasma is another 

 name for liquor sanguinis. 



Pleura, TrXevpa a rib ; the serous 

 membrane which invests the 

 lung. 



Plexus, woven ; a set of nervous 

 trunks or twigs more or less 

 closely matted together. 



Plica sennilunaris, semilunar 

 fold ; the fold of mucous mem- 

 brane resting on the inner part 

 of the eye-bail. 



Pneumo-gastric, mte&jju&v a lung, 

 and yao-T-jJp a belly ; the name 

 of a cranial nerve which sends 

 branches to the lung, and to the 

 stomach, and other abdominal 

 viscera. 



Pneumonia, TTVCVIJLWV a lung ; in- 

 flamation of the lungs. 



Portal vein, or vena portce, vein 

 of the gate ; the gate alluded to 

 being the transverse fissure of 

 the liver, in which the portal 

 vein divides to send its blood 

 into the capillaries of the liver. 

 A portal system is an expression 

 applied to any redistribution of 

 blood from a vein to a second 

 set of capillaries. 



Premolar, prc& before ; in front of 

 molars; a name applied to the 

 bicuspid teeth. 



Process, processus a going for- 

 ward ; the technical term for 

 any projection of bone or other 

 tissue. 



Prostate, pro before, and status 

 set; the name of a gland set in 

 front of the orifice of the urinary 

 bladder in the male. 



Protagon, Trpwro? first, and ayw 

 I lead ; the name of a chemical 

 substance obtained from brain 

 matter and other sources. 



Proteid, TT/OCOTOS first ; derived im- 

 mediately from protein, a sup- 

 posed compound radicle, from 

 which Mulder taught that the 

 various substances of the al- 

 buminoid group were all de- 

 rived. Proteid is therefore 

 another name for albuminoid; 

 but it is founded on an erro- 

 neous theory. 



Pseudoscope, \l/ev8o* a lie or 

 cheat, and o-KoWw I behold ; an 

 instrument by means of which 

 hollow objects are made to ap- 

 pear projecting, and projecting 

 objects hollow. 



Pterygoid, 7rre'pu a wing, and 

 sToos form. The pterygoid pro- 

 cesses of the sphenoid bone pro- 

 ject downwards behind the 

 palate bones, with which they 

 articulate. 



