

PRESTON SMELLING-SALTS 



1179 



PRIMIPARA 



Preston Smelling-salts. See English Smelling-salts . 



Presylvian (pre-sil'-ve-an) [prce, before ; Sylvius, an 

 anatomist]. Cephalad of the fissure of Sylvius. 



Presymphysial (pre-sim-Jiz f -e-al ) [pro:, before; av/i- 

 ■;, symphysis]. Situated in front of the symphysis 

 menti. 



Presystole (pre - sis' - to - le) [prce, before; ovoro/.i/, 

 )le]. The period of the heart's pause preceding 

 the systole. 



Presystolic (pre-sis-tol'-ik) [prce, before; cvoTo/rj, 

 ile]. Preceding the systole of the heart. P. 

 Murmur, the murmur of mitral or tricuspid stenosis, 

 which occurs just before the systole. P. Thrill, a 

 thrill felt over the precordia during the pause of the 

 heart, just before the systole. It is very commonly 

 present in mitral stenosis. 



Pretibial (pre-tib'-e-al) [prce, before; tibia, tibia]. 

 Situated in front of the tibia. 



Pretuberculous ( pre-tu-ber' -ku-lus) [ prce, before ; tu- 

 berculum, tubercle]. Preceding the development of 

 tuberculosis. 



Pretympanic (pre - tim -pan'- ik) [prce, before ; tym- 

 panum, tympanum]. Situated in front of the tym- 

 panic region. 



Preventive (pre-ven' -tiv) [prevenire, to anticipate, to 

 prevent]. Warding off. P. Medicine, that branch 

 of medical science that aims to prevent or ward off dis- 

 ease by properly directed hygiene, personal and public. 



Prevermis (pre-ver' 'mis) [prce, before; vermis, worm]. 

 The superior vermiform process of the cerebellum. 



Prevertebral (pre-ver' -te-bral) [prce, before ; vertebra, 

 vertebra]. Situated ventrad of a vertebra or the ver- 

 tebral column. 



Prevesical (pre-ves' '-ii-al) [pne, before ; vesica, blad- 

 der]. Situated in front of the bladder. 



Prezygapophysial (pre-zigap-off-iz'-e-al) [pne, be- 

 fore; £vy6v, yoke ; a -oovatc, process]. Pertaining to 

 the prezygapophysis. 



Prezygapophysis (pre-zi-gap-off' -is-is) [prce, before ; 

 . yoke ; ii-oovatc, process]. An anterior or 

 superior zygapophysis ; a superior oblique, or articu- 

 lar process of a vertebra. 



Priapism (pri'-ap-izm) [ir^oriffjiaic]. I. •Persistent or 

 frequently repeated erection of the penis. It is some- 

 times caused by injuries to the spinal cord ; also by 

 injuries to the penis and by vesical calculus. 2. The 

 erection of the clitoris in the female, under the influ- 

 ence of venereal desire. 



Priapitis (pri-ap-i'-tis). Synonym of Phallitis. 



Priapus (pri'-ap-us) {Jlpiarzoc, the god of procreation] . 

 Penis. 



Prickle (prik'-l) [prica, a point]. In biology, a hard- 

 ened, ridged, hair-like, epidermal outgrowth ; a senile 



Prickle-cells from Prickle-cells Isolated from the 

 the Deeper Layers Human Epidermis by means of 



t the Epidermis Iodized Serum, 

 of the Palm, show- 

 ing Intercellular 

 Bridges and Chan- 

 nels 'From Stirling.) 



!. Prickles ; d. Space between nucle- 

 us and cell-body. X 800. (From 

 Stirling.) 



spine. P.-cells, irregularly polyhedral cells, consti- 

 tuting the middle strata of the' human epidermis, 



which are mutually connected by means of delicate 

 processes that bridge the intervening intercellular 

 clefts and establish direct continuity between neigh- 

 boring cells; when such elements are isolated, the 

 delicate threads are broken and the disassociated 

 cells appear as if beset with minute spines. (Piersol.) 

 P. -layer, the lowest stratum of the epidermis, the 

 stratum spinosum. 



Prickly (prik'-le) [prica, a point]. In biology, cov- 

 ered with prickles. P. Ash. See Xanthoxylutn. 

 P. Heat. See Miliaria. 



Pride of China. See Azedarach. 



Priestley's Matter. A name formerly given to small 

 algae found in stagnant water and even in closed 

 vessels, which led Mayer (1827) and Kiitzing (1833) 

 to assume that they were produced by spontaneous 

 generation. 



Primae viae (pri'-me vi'-e) [L. , "the primary pass- 

 ages"]. The alimentary canal, the lacteals being 

 " the secondary passages. ' ' Old. 



Primalia (pri-ma'-le-ah ) [primus, first]. A name 

 given by Wilson and Cassin to a group of beings, in- 

 cluding the simplest plants and animals, which propa- 

 gate by cell-development. Comprised in these groups 

 are the algae, lichens, fungi, infusorians, and sponges. 



Primary (pri f -ma-re) [primus, first]. First in time or 

 in importance. P. Amputation, one that is done 

 before the development of inflammation, usually with- 

 in the first twenty-four hours. P. Body-cavity, the 

 space included between the somatopleure and the 

 splanchnopleure. It is also known as the ccelom. P. 

 Bubo, a simple adenitis of an inguinal lymphatic 

 gland, resulting from mechanical irritation. It is also 

 known as Bubon a" emblee. P. Confusional Insan- 

 ity, a form of insanity in which there is confusion of 

 ideas and marked incoherence of speech, without de- 

 cided emotional disturbance. See Insanity. P. Cur- 

 able Dementia. Synonym of P. Dementia. P. 

 Dementia, a form of insanity coming on suddenly 

 or gradually, in young adults, and characterized by 

 an extreme degree of apathy, the patient lying motion- 

 less, absolutely listless, without wants and seemingly 

 without perception of his surroundings. The condi- 

 tion resembles melancholia attonita, but there is no dis- 

 tinct emotional disturbance. P. Growth, the ori- 

 ginal growth or tumor from which secondary growths 

 are derived. P. Lesion, the original lesion which 

 forms the starting-point for secondary lesions. P. 

 Neural Tube, the canal formed by the meeting of 

 the medullary plates, a. v. P. Sore, the initial sclero- 

 sis or chancre of syphilis. 



Primates (pri-ma'-tez) [primus, first]. The highest 

 order of mammals, including man, the apes, the mon- 

 keys, and the lemurs. 



Primigenial (pri-mij-e'-ne-al) [ primus, first ; gignere, 

 to beget]. In biology, applied to organisms which 

 are primitive or early types of their kind. 



Primigenious (pri-mij-e'-ne-us) [primus, first ; gignere, 

 to beget]. In biology, original. 



Primigenous (pri-mij'-en-us). Same as Primigen- 

 ious. 



Primigravida (pri-mig-raiZ-id- ah) [primus, first; 

 gravidus, pregnant]. A woman in her first preg- 

 nancy. 



Primine (pri'-min) [primus, first]. In biology, the 

 ectal coat of the ovule, becoming the testa of the 

 seed. On account of the ental coat being first formed, 

 Mirbel and others have called it the primine. Cf. 

 secundine. 



Primipara (pri-mip/ar-ah) [primus, first; parere, to 

 bear : //. , Primipara\ . A woman bearing or giving 

 birth to her first child. See Primigravida. 





