PRO 



339 



PRO 



bones, which are of various kinds, 

 and named accordingly, such as : 



ieads, processes, round in form, 

 which belong to the moveable 

 articulations or joints ; 



condyles, processes which are 

 broader in one direction than 

 in the others ; 



mpressions, irregular eminences, 

 not much elevated ; 



lines, unequal eminences, long, 

 but not very prominent ; 



crests, eminences resembling lines, 

 but broader, and more prom- 

 inent ; 



prominences, prominent elevations, 

 rounded, broad, and smooth ; 



tuberosities, elevations, rounded 

 and rough ; 



spinoKs processes, have the form 

 of a spine ; 



styloid, resemble a style or pen ; 



corocoid, resemble a crow's beak ; 



odontoid, resemble a tooth ; 



mastoid, resemble a nipple. 



procidentia uteri, pros'-id-en'slii-a 

 ut'-er-l (L. procidentia, a falling 

 down from pro, forward ; cado, 

 I fall ; Uterus, the womb, uteri, 

 of the womb), the prolapse or 

 falling down of the womb ; the 

 protrusion of the uterus beyond 

 the vulva. 



procoalous, a., pro- set' us (Gr. pro, 

 before, forward ; Tcoilos, hollow), 

 applied to vertebrae, the bodies of 

 which are hollow or concave in 

 front. 



procumbent, a., pro-kumb'-ent (L. 

 procumbens, leaning forward), 

 prostrate ; in lot. , lying upon or 

 trailing along the ground. 



proembryo, n., pro-em'-bri-d (Gr. 

 pro, before ; Eng. embryo), in 

 bot. , a free cell in the embryonal 

 vesicle, which divides into eight 

 cells by vertical and transverse 

 septa, constituting together a 

 short cylindrical cellular body ; 

 the first part produced by the 

 spore of an acrogen in germinating ; 

 a prothallus. 



profunda corvicis, pro -fund'- a 



serv-is'is (L. profundus, deep j 

 cervix, the neck, cervlcw, of the 

 neck), the deep artery of the 

 neck ; the deep cervical branch 

 of the subclavian artery : pro- 

 funda femoris, f em' or -is (L. 



femur, the thigh, fem6ris, of the 

 thigh), the deep artery of the 

 thigh ; the deep femoral artery. 



proglottis, n., pro-glottis (Gr. 

 pro, for ; glotta, the tongue), the 

 generative segment or jo:'nt of a 

 tapeworm : proglottides, n. plu. , 

 pro-glot'-tid-ez, the sexually free 

 and mature segments of Tsenia 

 solium. 



prognathous, a., prdg-natli'us, 

 also prognathic, a., prog-nath'ik 

 (Gr. pro, before ; gnathos, jaw, 

 the cheek), having prominent or 

 projecting jaws, as in the Negro 

 and Hottentot. 



prognosis, n., prog-novf-ls (Gr. 

 prognosis, foreknowledge from 

 pro, before ; gignosko, I know), 

 the foretelling the result of any 

 disease, based upon a considera- 

 tion of its signs and symptoms. 



progressive atrophy, see ' atrophy,* 

 a gradual and systematic advanc- 

 ing atrophy of muscles ; fatty 

 degeneration. 



progressive locomotor ataxia, a 

 disease characterised in walking 

 by the peculiar gait, as that of a 

 drunken man, arising from the 

 loss of the faculty of co-ordination 

 of the limbs, and harmonising the 

 movements of independent parts ; 

 see ' locomotor ataxia. ' 



prolapse, n., pro-laps', also pro- 

 lapsus, n., pro-laps'-us (L. pro- 

 lapsus, sliddeu or fallen down), in 

 surg. , a protrusion or falling down 

 of a part, especially the gut or 

 womb, so as to become partly ex- 

 ternal and uncovered : prolapsus 

 ani, an'-l (L. anus, the fundament), 

 an affection analogous to invagin- 

 ation, in which a fold of the 

 mucous membrane comes down, 

 or in which both the mucous and 

 muscular tunics descend, forming 



