PERIMORULAR 



1048 



PERIODIC 



mulberry]. The ovum in the morula stage, in which 

 the nutritive yolk is covered by a layer of cells de- 

 veloped from the formative yolk. 



Perimorular (per-im-or f -u-lar) [irepi, around ; fiopov, 

 mulberry]. Pertaining to the perimorula. 



Perimyelis {per-im-i' -el-is) [nepi, around ; fivelog, 

 marrow]. The medullary membrane or endosteum ; 

 the areolar envelop of the bone-marrow. 



Perimyelitis (per-im-i-el-i'-tis) [7rept, around ; fiveMg, 

 marrow; trig, inflammation]. Spinal meningitis. 



Perimysial (per-im-iz'-e-al) \jitpi, around; fivg, mus- 

 cle]. Of the nature of, or pertaining to, perimysium ; 

 enveloping a muscle. 



Perimysiitis {per-im-iz-e-V '-lis) [irepi, around ; p.vg , 

 muscle; ing, inflammation]. Inflammation of the 

 perimysium. 



Perimysium (per-im-iz'-eum) \nepi, around; [ivg, 

 muscle: pi. , Perimysial]. In biology, the bands of 

 connective tissue that envelop and separate the 

 primary bundles of muscle-fibers from each other, as 

 distinguished from the endomysium, which holds to- 

 gether the individual muscle-fibers, and the epimysium, 

 which invests the entire muscle. 



Perin {per' -in) \jrzpiv, a serous sac]. Perineum; also 

 the scrotum. 



Perinaeum (per-in-e'-um). See Perineum. 



Perineal (per-in-e'-al) [Trepivaiov, perineum]. Pertain- 

 ing to the perineum. P. Aponeurosis. Same as 

 P. Fascia. P. Artery. See Arteries, Table of. P. 

 Body, the peculiar structure in the female, composed 

 of skin, muscle, and fascia, and occupying the interval 

 between the vagina and the rectum. P. Cystotomy, 

 cystotomy performed through a perineal incisidX 

 P. Fascia, the fascia of the pelvic outlet. P. Flex- 

 ure, a sharp bend in the rectum immediately above 

 the anus. P. Fossa, the ischio-rectal fossa, situated 

 between the rectum and the perineal muscles. P. 

 Hernia, a rare form of hernia perforating the perineum 

 by the side of the rectum or between the rectum and 

 the bladder or the vagina. P. Nerve. See Nerves, 

 Table of. P. Region, the perineum. P. Section, 

 incision through the perineum for the relief of urethral 

 stricture, the removal of calculi from the bladder, or 

 the relief of other morbid conditions. P. Spasm. 

 See Vaginodynia. P. Strait, the inferior pelvic strait. 



Perineauxesis (pcr-in-e-awks-e'-sis) [nepivaiov, peri- 

 neum; av^i/aig, growth]. The bulging of the peri- 

 neum during labor. 



Perineocele (per-in-e'-o-sil) [irepivatov, perineum ; 

 KTjJ.rj, tumor]. Perineal hernia. 



Perineoplasty (per-in-e'-o-plas^^irsplvaiov, perineum ; 

 ■kIAgoeiv, to form]. Plastic operation upon the peri- 

 neum. 



Perineorrhaphy (per-in-e-or'-a-fe) [nepivaiov, peri- 

 neum ; patpr/, suture]. Suture of the perineum, usually 

 in repair of a laceration caused during childbirth. 



Perineosynthesis (per-in-e-o-sin'-t/ies-is) [irepivaiov, 

 perineum; awdeaig, a placing together]. Aplastic 

 operation upon the perineum in which a graft of vagi- 

 nal mucosa is made to cover the wound . 



Perineotomy (per-in-e-of'-o-me) [irepivatov, perineum ; 

 tout/, a cutting]. Incision through the perineum. 



Perinephral (per-in-ef'-ral). Same as Perinephric. 



Perinephrial \per-in-ef'-re-al) [Kepi, around ; ve<pp6g, 

 kidney]. Pertaining to the perinephrium. 



Perinephric [per-in-cf'-rik) [jtepi, around; vetpp6g, 

 kidney]. .Situated, or occurring, around the kidney. 

 P. Abscess, an abscess, in the tissues about the 

 kidney. 



Perinephritic (per-in-ef-rit'-ik) {jrepi, around ; veQpog, 

 kidney; trig, inflammation]. Pertaining to perineph- 

 ritis ; improperly, same as perinephric. 



Perinephritis (per-in-efri'-tis) [nepi, around ; ve<t>p6g, 

 the kidney ; trig, inflammation]. Inflammation of the 

 tissues surrounding the kidney. It may be either 

 primary or secondary, usually the latter. It is marked 

 by pain in one lumbar region, dull, aching in character, 

 with tenderness over that region, slight fever, and 

 slight rigors. If pus forms the symptoms are aggra- 

 vated, and burrowing may occur in various directions. 



Perinephrium (per-in-ef / -re-um)[Trepi, around ; ve<j>p6g, 

 kidney] . The connective and adipose tissue surround- 

 ing the kidney. 



Perineum (per-in-e'-um) [wepiveov, or nepivaiov]. That 

 portion of the body included in the outlet of the 

 pelvis, bounded in front by the pubic arch, behind by 

 the coccyx and great sacro-sciatic ligaments, and at the 

 sides by the tuberosities of the ischium. It includes 

 all of the structures between the ischial tuberosities on 

 either side, the anus posteriorly, and the vagina in the 

 female and the scrotum in the male anteriorly. It is 

 separated from the pelvic cavity by the recto-vesicai 

 fascia. It is occupied by the terminations of the 

 rectum, the urethra, and the root of the penis, together 

 with their muscles, fasci?e, vessels, and nerves. In 

 a more restricted sense, the term perineum is applied 

 to the space in advance of the anus (true perineum) ; 

 in the female it is occupied by the termination of the 

 vagina, the vulva, and the clitoris. The median line 

 of the perineum presents a slight ridge, the raphe. 



Perineurial {per-in-ew' -re-al) \jvepi, around; r 

 nerve]. Relating to or resembling the perineurium. 

 P. Lymph-channels, lymph-spaces surrounding the 

 nerve-trunks, as in the cornea. 



Perineuritis [per-in-ew' '-ri> '-tis) \jzzpi, around ; i 

 nerve; trig, inflammation]. Inflammation of the 

 perineurium. 



Perineurium ^per-in-ew' -re-um)\Trip\, around ; vi 

 nerve: pi. , Perineuria]. The connective-tissue 

 sheath investing each funiculus or primary bundle ot 

 nerve-fibers ; as distinguished from the endoneurium, 

 which extends among and around the individual libers, 

 and the epineuriiim, which holds together and envelops 

 the several funiculi of the nerve trunk. 



Perinium (per-in'-e-um) [jrepi, around ; Ig (if), muscle, 

 fibrous tissue in muscle] . In biology, the outer cell- 

 wall of the spores of HepaticcE, often beautifully 

 sculptured. 



Perinuclear {per-in-e7u , -kle-ar)[TTepi, about; nucleus, a 

 kernel]. In biology, of or pertaining to the proto- 

 plasm or other substances surrounding the nucleus 

 of a cell. Surrounding the nucleus. 



Perinyctis { per-in-ik' -tis) [nepi, around ; jm' f , night]. 

 Same as Epinyctis. 



Periocular {per-e-ok'-u-lar) [irepi, around; ocuhts, 

 eye]. Surrounding the eye. P. Space, the 

 between the globe of the eye and the orbital walls. 



Period {pe'-re-od) \Trepio6og, period]. The spa 

 time during which anything is in progress or at which 

 an event takes place. Also the menses. P. , Child- 

 bearing, the period, from puberty to the nun.'! 

 during which the female is capable of reproducing 

 offspring. P., Dodging, a colloquial term tor tl 

 menopause. P., Incubation. See Incubation. P-. 

 Menstrual, P., Monthly, the act of menstruation. 

 P., Reaction. See Reaction-period. P., Respira- 

 tory, the interval between two successive inspii 



Periodeusis (pe-re-od-ew' -sis) [weptodcveiv, 

 round]. .Synonym of Quackery, 



Periodic, Periodical {pe-re-o'd'-ik, />, 



[irepio(hK6g, periodic]. Recurring at stated p 

 Having periods of recurrence and of intermisMOB 

 P. Acid, H, 2 () 4 . Anoxyacid of iodin not yet obUB»» 

 in the free state. P. Disease, one occurring ;it 



