PURGANTIA 



1218 



PURPURA 



Purgantia (pur-gan'-she-ah) [purgare, to purge]. 

 Laxatives. 



Purgation (pur-ga'-shun) \_purgare, to cleanse]. The 

 evacuation of the bowels by means of purgatives. 



Purgative [pur' '-gat- iv) [purgare, to purge]. I. 

 Having a tendency to purge ; cathartic. 2. A medi- 

 cine producing copious evacuations of the bowels. 



Purge (purj) [purgare, to purge]. A purgation; a 

 dose of purgative medicine. As a verb, to cause free 

 evacuations of the bowels. 



Purging (pur'-jing) \_purgare, to purge]. Causing 

 free evacuations of the bowel. P. Agaric. See 

 Agaricus. P. Cassia. See Cassia. P. Nut. The 

 seed of the tropical tree, Jatropha curcas. The nut 

 affords a purgative oil much like castor-oil, though 

 not so active. 



Purified ( pu' '-rif-ld) [punts, pure; ficere, to make]. 

 Cleansed ; freed from extraneous matter. 



Puriform (pu f - ri-form) [pus, pus; forma, form]. 

 Resembling pus. 



Puritic {pu-rit'-ik) [pus, pus]. Pertaining to pus. 



Purkinje, Axis-cylinder of {per-kin'-je) [a Bohemian 

 physiologist, 1787-1869]. The viscous fluid contents 

 of a nerve-tube, solidified by coagulating agents, and 



Cell of Purkinje. 



a, Seen on the flat, and b, from the side. X 120. {From 

 Stirling.) 



after treatment with chromic acid appearing as a solid 

 rod running down the center of the tube. P.'s Cells, 

 the cells forming 

 the thinnest but, 

 at the same 

 time, the most 

 characteristic 

 layer of the cere- 

 be liar cortex. 

 They are among 

 the largest gan- 

 glion-cells in the 

 body, are dis- 

 posed as a single 

 row at the junc- 

 tion of the nu- 

 clear and the 

 molecular layer, Purkinje's Fibers. 



and present py- c. Cell. /. Striated substance, n. Nu- 

 riform or flask- c,eus - X 3°°- CLamMs.) 



shaped bodies, 60-70 n in their longest diameter, 

 placed vertically to the plane of the zone, with 



the larger rounded end resting on the outer mar- 

 gin of the nuclear layer, while the smaller end is di 

 rected toward the periphery. (Piersol.) P., Cor- 

 puscles of. See Bone-lacunic. P.'s Fibers, an 

 anastomosing system of grayish muscular fibers that 

 exists in the sub-endocardial tissue of the ventricles, 

 especially in the heart of the sheep and ox. 

 fibers are composed of nucleated polyhedral cells, con- 

 taining some granular protoplasm. P.'s Figures, 

 shadows of the retinal blood-vessels upon the 1 

 P. Vesicle, the nucleus of the human ovum first dis- 

 covered by Purkinje (1830), and known as the 

 ula germinativa , Purkinje' 'schen Blase hen, or Germ- 

 inal Vesicle. 



Purkinje-Sanson's Images. Three pairs of images 

 of one object seen in an observed pupil : the first, erect, 

 reflected from the anterior surface of the cornea ; the 

 second, erect, reflected from the anterior surface of 

 the lens; the third, inverted, reflected from the pos- 

 terior capsule of the lens. 



Puro-hepatitis (pu-ro-hep-at-i'-tis) [pus, pus; Tjirao, 

 liver; trig, inflammation]. Purulent hepatitis. 



Puromucous (pu-ro-mu'-kus) [pus, pus; m 

 mucus]. Purulent and mucous. 



Purple (pur' -pi) [purpureus~\. Of a color poss 

 the elements of blue and red. As a noun, the 

 itself, or a body possessing it. P. -brown. See Pig- ' 

 ments, Conspectus of. P.-carmin. Same as Mu, 

 P. of Cassius, the purplish-red precipitate re- 

 when a solution of gold trichlorid is brought in 

 tact with a mixture of stannous and stannic chi 

 P., French. Synonym of Orchellin. P. -madder. 

 See Pigments, Conspectus of. P., Mineral, 

 onym of P. of Cassius. P. of Mollusca. Same . - 

 Tyrian Purple. P., Ocher. Same as Mineral 

 pie. P., Visual. See Phodopsin. 



Purples (pia-'-plz) [purpureus, purple]. A ] 

 name for purpura ; also, for petechial spots. 



Purposive (pur'-po-siz') [ME. , purposen, to propose' 

 Functional ; not vestigial, and not rudimentan 

 garded as fulfilling an end or purpose in the ecor 

 P. Acts, those acts performed with the consent 

 will. 



Purpura {pur' '-pu-rah)[h. for " purple ' ']. Hccmorr, 

 petechia lis ; a general term including all extra 

 tions of blood into the skin and mucous meml 

 not resulting from traumatism. It is symptomatic 1 

 many conditions. P. apyretica. Synonym oi 1 

 simplex. P., Aqueous. Synonym of Hamopiu 

 P. bullosa. See Pemphigus hamorrhagicus. ?• 

 febrilis, purpura with elevation of temperature. P 

 fulminans, a grave form of purpura, developing 

 young children as a sequel to acute infectiousd 

 eases. It is of short duration, is marked by exit 

 sive extravasations, grave constitutional sympl 

 and usually ends fatally. P. haemorrhagica, M 

 bus maculosus iverlhofi ; Land-scut 

 aggravated form of purpura simplex. 

 marked constitutional symptoms followed by an er 

 tion of hemorrhagic points, larger than in purpi 

 simplex, upon the lower limbs, extending in sii 

 sive crops over the whole body-surface, co 

 form irregularly-shaped extensive ecchymol 

 or even raised, bloody tumors (ecchymomata lb' 

 orrhages may take place from the mucous 

 into the serous cavities. Recovery is the rule. 

 W'erlhofs Disease. The disease may be i 

 P. hypertrophica. See /'. tuberculosa. P.. Iod 

 a purpuric eruption caused by the use of iodin 01 

 iodids. P., Malignant. Synonym of / 

 brospinal. P. medicamentosa, purpura due t 

 action of drugs. See P., Iodic. P. menstn: 



