ILEOPARIETAL 



307 



IMMUNIZATION 



Relating to the walls 

 See Iliopeclineal 



Ileoparietal [il-e-o-par-i' -et-al). 



of the ileum. 

 Ileopectineal (il-e-o-peh-tin-e' '-al). 



Ulus. Diet.). 

 Ileosigmoidostomy [il-e-o-sig-moid-os'-to-nie). The 



surgical formation of a fistula between the ileum and 



sigmoid flexure. 

 Ileotomy (il-e-ot'-o-me) [t'u.e'iv, to roll; riuveiv, to 



cut]. Incision of the ileum through the abdominal 



wall. 

 Ileas. (See Illus. Diet.) I. stercoralis, that due to 



fecal obstruction. 

 I Hal (il'-e~al). See Iliac (Illus. Diet.). 

 Iliocolotomy (il-e-o-ho-lot'-o-we) [ilium; colon; rouij, 



a cutting]. Incision of the colon in the iliac region. 

 Iliodorsal (il-e-o-dor'-sal \ [ilium; dorsum, the back]. 



Relating to the dorsal surface of the ilium. 

 Ilioinguinal. (See Illus. Diet.) 2. Lying partly 



within the iliac and partly within the inguinal region. . 

 Iliolumbocostoabdominal (il- e-o-lum - bo-kos-to-ab- 



dem' -in-al). Pertaining to the iliac, lumbar, costal, 



and abdominal regions. 

 Ilioperoneal ( il-e-o-per-o-tttZ-al ). Relating to the ilium 



and the peroneal region. 



Relating to the ilium and 



Relating to the ilium and 



Relating to the ilium and 



I. floridanum, Ell., 

 The bark is used as a 



Inunc- 



Iliosacral (il-e-o-sa'-kral) 

 the sacrum. 



Iliosciatic {il-e-o-si-at'-ik), 

 the ischium. 



Ilioscrotal (il-e-o-skro'-tal) 

 the scrotum. 



Illicium. (See Illus. Diet.) 

 Florida anise tree, stinkbush 

 substitute for cascarilla. 



Illinition (il-in-ish'-un) \illinere, to smear] 

 tion. 



Illumination. (See Illus. Diet.) 2. The lighting up 

 of a body-cavity for examination. I., Central, in 

 microscopy, an illumination produced by the rays of 

 light reflected from the mirror passing perpendicularly 

 through the object on the stage. I., Lateral. See /., 

 Oblique (Illus. Diet.). 



Image. (See Illus. Diet. ) I., Acoustic, I., Auditory, 

 an image formed on the mind by an impression con- 

 veyed by the sense of hearing. I., Catoptric, one re- 

 flected from a polished surface. I., Mental. See /., 

 Acoustic, I., Sensory, I., Tactile. I., Sanson's. See 

 Purkinje-Sanson s linages (Ulus: Diet.). I., Sensory, 

 an image conveyed to the mind's eye by one of the 

 organs of sense. I., Tactile, a mental image evoked 

 by the sense of touch. 



Imaginal. (See Illus. Diet.) 2. Opposed to larval ; 

 in psychic research applied to transcendental faculties 

 shown in rudimentary stage in ordinary life. 



Imapunga (im-ap-ung'-ah) [South African]. A dis- 

 ease occurring to a limited extent among South African 

 cattle closely related in pathology to South African 

 horse-sickness. 



Imbecility. (See Illus. Diet.) Syn., Insipientia in- 

 genita. I., Acquired. Synonym of Dementia pre- 

 cox. 



Imbedding. See Embedding (Illus. Diet.). 



Imesatin (im-es / -at-in). C g H 6 N s O. A dark-yellow 

 crystalline substance obtained from isatin by action of 

 ammonia. 



Imid, Imide (im'-id). Any compound of the radicle 

 NH united to a divalent acid radicle. 



Imidiod (iw-id'-e-od). Glossy crystals melting at 175 

 C. obtained by interaction of para-ethoxyphenyl suc- 

 cinimid, iodin, and potassium iodid in the presence of 

 acetic acid ; it is used as a wound antiseptic. 



Invdoxanthin (im-id-o-zan'-thin). See Guanin (Illus. 

 Diet.). 



Imlach's Fat-plug. A mass of yellowish fat frequently 

 found at the mesial angle of the external inguinal ring, 

 for which it constitutes a landmark during operations. 



Imminence (im'-in-enz) [imminere, to overhang]. An 

 impending or menacing. I., Morbid, the period im- 

 mediately preceding the incubation stage of a disease. 



Immiscible \im-iV-ibl) [in, not, miscere, to mix]. 

 Not capable of being mixed. 



Immune. (See Illus. Diet.) I. Body. See under 

 Body. I. Proteids, substances resulting from combina- 

 tion in the living body of the enzymes of pathogenic 

 bacteria with certain albuminous bodies, probably those 

 derived from the leukocytes. 



Immunity. (See Illus. Diet.) See La~a; Pehring's. 

 I., Active, that induced by direct treatment with fil- 

 tered or unfiltered cultures resulting in the production 

 in the body of antibacterial or antitoxic substance. I., 

 Antitoxic, immunity against toxins. I., Passive, 

 that form of antitoxic immunity obtained by the con- 

 veyance into the body of the blood-serum of an animal 

 gradually adapted to a toxic or infective agent and con- 

 taining the protective substances ready formed. 

 Buchner's Humoral Theory supposes that a reactive 

 change has been brought about in the integral cells of 

 the body by the primary affection from which there has 

 been recovery, and this change is protective against 

 similar invasions of the same organism. Chauveau's 

 Retention Theory proposed that bacteria, instead of 

 removing certain essential food-principles from the 

 body, left within the body certain excretory products, 

 and that the accumulation of these products tended to 

 prevent the subsequent invasion of the same species 

 of bacteria. Ehrlich's Side-chain Theory con- 

 siders the individual cells of the body to be analogous 

 in a certain sense to complex organic substances, and 

 that they consist essentially of a central nucleus to 

 which secondary atom-groups having distinct physio- 

 logic functions are attached by side-chains such as 

 chemists represent in their attempts to illustrate the re- 

 actions which occur in the building up or pulling down 

 of complex organic substances. The cell-equilibrium 

 is supposed to be disturbed by injury to any of the 

 physiologic atom-groups, as by a toxin, and this dis- 

 turbance results in an effort at compensatory repair 

 during which plastic material in excess of the amount 

 required is generated and finds its way into the blood. 

 This Ehrlich regards as the antitoxin which is capable 

 of neutralizing the particular toxin to which it owes its 

 origin, if this is subsequently introduced into the blood. 

 In this theory a specific combining relation is assumed 

 to exist between various toxic substances and the 

 secondary atom-groups of certain cellular elements of 

 the body. The atom-groups which, in accordance 

 with this theory, combine with the toxin of any par- 

 ticular disease-germ, Ehrlich calls the toxiphoric side- 

 chain [G. M. Sternberg]. Emmerich and Low's 

 Theory is based upon the conclusion that many bacteria 

 generate enzymes capable of digesting the organism by 

 which they were generated and sometimes other organ- 

 isms as well. Exhaustion Hypothesis, Pasteur's 

 (1880) theory that immunity often afforded to the tis- 

 sues by an attack of infection or following vaccination 

 against infection is due to an abstraction from the tis- 

 sues by the organism concerned in the primary attack, 

 of something necessary to the growth of the infecting 

 organism. It is opposed to the retention theory of 

 Chauveau. Lateral Bond Theory. See Ehrlich's 

 Side-chain Theory. Metchnikoff 's Phagocytic 

 Theory (1884). See Phagocytosis (Illus. Diet.). 



Immunization. (See Illus. Diet.) Haffkine's Method 

 of, against cholera. It consists in the injection of a 

 definite quantity of sterilized culture ; five days later a 



