PROSTATECTOMY 



1192 



PROSTRATION 



pubis, and upon the rectum, through which it is palpable 

 when enlarged. It measures an inch and a half in 

 its transverse diameter, an inch in its antero-posterior, 

 and three-quarters of an inch in thickness. Its weight 

 is about 6 drams. It consists of two lateral and a 

 middle lobe. In structure it consists of muscular and 

 glandular tissue ; a distinct capsule surrounds it. 

 The prostate often becomes enlarged in advanced life, 

 and may then interfere with the emptying of the 

 bladder. P., Anterior, a small glandular body some- 

 times found in front of Mery's glands. P., Enlarged, 

 the enlargement of the prostate gland, so frequent in 

 advanced life. One of the most constant symptoms 

 is frequent urination, especially at night. 



Prostatectomy ( pros-tat-ek' -to-me) [ wpocT&Tr/g, pros- 

 tate ;' EKTo/ii], excision]. Excision of a part of the 

 prostate, also known as Merrier 1 's Operation. 



Prostatelcosis, Prostathelcosis ( pros-tat-el-ko'-sis, 

 pros-tat-hel-ko' -sis ) [ TrpoaT&T>/g, prostate ; iTinuaig, 

 ulceration]. Ulceration of the prostate. 



Prostatic ( pros - tat'- ik) [ ■KpoaTcnr/g, prostate] . Re- 

 lating to the prostate. P. Acini, highly developed 

 urethral glands, opening by several ducts on the free 

 surface of the urethra. P. Calculus, a stone lodged 

 in the prostate gland. P. Ducts, a number of short 

 ducts opening upon the floor of the urethra, and com- 

 municating with the prostate gland. P. Plexus. 

 I. A collection of veins surrounding the neck and 

 base of the bladder and the prostate gland. 2. A 

 plexus of nerves derived from the pelvic plexus, and 

 distributed to the prostate gland, seminal vesicles and 

 erectile tissue of the penis. P. Sinus, a depression 

 in the prostatic urethra, one on each side of the 

 verumontanum, which marks the entrance of the 

 prostatic ducts. P. Urethra, that portion of the 

 urethra surrounded by the prostate gland. P. 

 Vesicle, a small cul-de-sac situated at the middle 

 of the highest portion of the crest of the urethra. It 

 is the analogue of the uterus of the female, and is 

 also called the uterus masculinus, the sinus pocularis 

 and the utricle. 



Prostaticus ( pros-tat' -ik-tis). Same as Prostatic. 



Prostatitic (pros-tat-it'-ik) [wpoaTaTr/g, prostate ; cTig, 

 inflammation]. Affected with prostatitis. 



Prostatitis (pros-tat-i'-tis) [npoa-dTr/g, prostate ; trig, 

 inflammation]. Inflammation of the prostate gland. 



Prostatocele [pros - tat'- o-sel ) [npnaTa.Tr/g, prostate ; 

 nr/'kr/, tumor]. An enlargement of the prostate gland, 

 causing a tumor-like projection. 



Prostatocystitis (pros-tat-o-sis-ti' '-tis) [-rrpoaTaTr/g, pros- 

 tate; Kvorig, bladder; trig, inflammation]. Inflamma- 

 tion of the prostate and urinary bladder. 



Prostatolith (pros - tat f - - lit/i) [irpoaT&rr/g, prostate ; 

 Aidog, a stone]. A prostatic calculus. 



Prostatome (pros' -tat- dm) [_TrpoaTa.Tr/g, prostate ; to/it), 

 a cutting]. A cutting-instrument used in operations 

 upon the prostate. 



Prostatomele (pros-tat-om' '-el-e) [-KpoaTcnr/g, prostate ; 

 fir/Ar/, probe]. A sound for exploration of the prostate 

 gland. 



Prostatometer (pros-tat-om' -et-er) [npoaTciTr/g, prostate ; 

 fiirpov, measure]. An instrument used in measuring 

 the prostate. 



Prostatoncus ( pros-tat -ong' '-kus) [rrpoaTaTr/g, prostate ; 

 bynog, tumor]. A tumor of the prostate. 



Prostatoparectasis (pros-tat- o-par-ek' -tas-is) [npooTa- 

 TT/g, prostate ; -rraptnTaotg, a stretching]. Enlargement 

 of the prostate gland. 



Prostatorrhea (pros-tat-or-e'-ah) [rrpoaTarr/g, prostate ; 

 poia, flow]. A thin, urethral discharge coining from 

 the prostate gland in prostatitis. 



Prostatoscirrhus (pros-tat-o-skir' -us) [npoaTaTr/g, pros- 



tate ; anip'pog, induration]. Scirrhous carcinoma of 

 the prostate gland. 



Prostatdtomy (pros-tal-ot'-o-me) [_TrpoaTa.Tr/g, prostate ; 

 TOfii], a cutting]. Incision into the prostate gland. P., 

 Thermo-electric, perforation of an enlarged prostate 

 by means of the galvanic cautery, for the purpose 

 of establishing a channel through it. 



Prosternal ( pro - ster' '- nal) [npo, before ; aTtpvov, the 

 breast-bone]. Pertaining to the presternum. 



Prosternidium (pro-ster-nid' -e-um) [rrpo, before; aTtp- 

 vov, breast-bone]. A plaster for the chest. 



Prosternum ( pro -ster' -num) [rrpd, before ; aTepvov, the 

 breast-bone: //., Prosterna_\. In biology, the sternal 

 piece of the prothorax of an arthropod. 



Prostethedium (pro-steth-ed' -e-um) [np6, before ; arr]- 

 dog, breast]. See Prosternidium. 



Prostheca (pros-the'-kah) [tt poaOeur/, an addition, ap- 

 pendage : pi., Prostheca:_\. In biology, a process on 

 the mandibles of certain insects (e.g., Staphylinida, 

 or rove-beetles). 



Prosthecal (pros-the'-kal) [rrpoaOr/Kr/, an addition, ap- 

 pendage] . Pertaining to the prostheca. 



Prosthema (pros' -the-mah) [TvpoaBefia, an addition, ap- 

 pendage : pi., Prosthemata_\. In biology, the leaf- 

 like appendage of the nose of a bat, as in Phyllorhina. 



Prosthencephalon {pros-then-sef -al-on) [rrpoadsr, be- 

 fore ; kyukyaAog, the brain]. The segment of the 

 brain consisting of the cerebellum and oblongata. 



Prosthesis (pros' -thes-is) [rrpog, to; Osatg, a placing]. 



1. Substitution of an artificial for a natural part ; re- 

 placement of a missing part by an artificial substitute. 



2. The branch of surgery which is devoted to supply- 

 ing by artificial means parts that are defective. P., 

 Dental, the replacement of the loss of one or more 

 teeth by an artificial substitute. 



Prosthetic (pros-thet'-ik) [rzpog, to ; Oeatg, a placing]. 

 Pertaining to prosthesis, or the use of artificial substi- 

 tutes to replace lost or wanting parts of the body. P. 

 Apparatus, an apparatus which serves as a substitute 

 for a part that is missing. P. Dentistry, the replace- 

 ment of natural teeth by artificial substitutes. 



Prosthetics (pros-thet'-i/cs) [rrpog, to; Oeaig, a placing]. 

 The branch of surgery which deals with prosthesis. 



Prosthion (pros' -the -on) [-rrpdaBiog, foremost]. 1. Al- 

 veolar point. See Craniometric Points. 2. Pi-. 



Prostitution (pros - tit - u' '- shun) [prostitntio~]. The 

 condition or act of a woman who indiscriminately 

 lets her body for sexual intercourse. In many of the 

 countries of Europe prostitution is recognized as a 

 matter for hygienic inspection, the prostitutes being 

 subject to police surveillance and medical inspection. 

 In the United States the existence of the evil is, in 

 general, legally ignored. 



Prostoma (pro-sto'-mah) [rrpd, before ; aTo/ia, mouth]. 

 The blastopore. 



Prostomial (pro- sto'-me-al) [irpo, before; 

 mouth]. Preoral ; pertaining to the prostomium. 



Prostomiate (pro -slo'-me-at) [~po, before; 

 mouth]. Provided with a prostomium. 



Prostomium (pro-sto'-me-um) ["/>«. before; etrdfia, 

 mouth : pi., Prostomia\ In biology, the region in 

 front of the mouth ; said of embryos or inverteb 



Prostrate (pros' -tr<lt)[ pro, before; sternere, to spread]. 

 Lying flat or at full length. 



Prostrated ( pros' -tra-ted) [pro, before; stern 

 spread]. Exhausted ; stricken down. 



Prostration (pros-tra'-shun) [pro, before ; stentt 

 spread]. The condition of bein^ prostrate. Extreme 

 exhaustion of nervous or muscular force. P., Nervous, 

 general exhaustion from excessive expenditui 

 nervous energy. Intense mental application may 

 produce it. 



