MYCTERIC 



372 



MYOEPITHELIUM 



Mycteric (mih-ter'-/k) \jivkttjp, the nose]. Relating 

 to the nasal cavities. 



Mycteroxerosis (mik-ter-o-ze-ro' -sis) \jxvkttjp, the nose; 

 Sr/pog, dry]. Dryness of the nostrils. 



Mydriasis. (See Illus. Diet.) M., Alternating, M., 

 Leaping, M., Springing, mydriasis which by normal 

 light and convergence-reaction attacks first one eye 

 and then the other. It is due to disorder of the central 

 nervous system. 



Mydrin (mi'-driii). A combination of the hydro- 

 chlorids of ephedrin and homatropin. It is used in 

 10% solution when evanescent mydriasis is required. 



Mydrol (mi'-drol). Iodomethylpyrazolin, a colorless, 

 bitter powder soluble in water and alcohol. It is used 

 in $fc-lofc solution as a mydriatic. 



Myelen (mi' -el-en). An extract of ox-marrow. 



Myelinic. (See Illus. Diet.) 2. Medullated. 



Myelinization (mi-el-in-iz-a'-shun). The medullation 

 of nerve-fibers. 



Myelitis. (See Illus. Diet. ) M., Annular, Chronic, 

 annular sclerosis. M., Anterior Cornual (Gowers). 

 Synonym of Paralysis, Acute Atrophic. M. of the 

 Anterior Horns. [Seguin.] Acute anterior polio- 

 myelitis. M. atactica, that marked by motor incoor- 

 dination and loss of muscle-sense. M., Cavitary, 

 Joffroy's name for syringomyelitis. M. circumscripta. 

 See M., Focal (Illus. Diet.). M. convulsoria [A. 

 Hortel], electric chorea. M. generalis. See M., 

 Diffuse (Illus. Diet.). M. hyperplastica granulosa. 

 See Osteitis fungosa. M. segmentalis. See A/. , 

 Transverse (Illus. Diet.). 



Myeloblasts (mi-el' -o-blasts) [//ucaoc, marrow ; jl/MOToq, 

 a germ]. Nageli's term for cells from which myelo- 

 cytes are formed. They are free from granules, con- 

 tain no nucleoli, and the chromatin is always present 

 in regular reticular form. 



Myelocene (mi-el' -o-sen). A preparation of bone-mar- 

 row, used as an application in psoriasis, etc. 



Myelocyst (mi-el' -o-sist) [/zw/tdc, marrow; nvorig, 

 bladder]. A cyst springing from the medullary canal. 



Myelocytes. (See Illus. Diet.) 3. A group of leuko- 

 cytes derived from bone-marrow, as distinguished from 

 lymphocytes found in the lymphatic glands. 



Myelocythemia (mi-el-o-si-the'-me-ah) [fiveMr, mar- 

 row; kvtoc, cell; ulfia, blood]. An excess of myelo- 

 cytes in the blood. 



Myeloganglitis (mi-el-o-gang-gli'-tis). A very severe 

 form of cholera believed to be due to ganglitis of the 

 solar plexus and of the hepatic plexus. Syn., Gangli- 

 tis medullaris. 



Myelolymphangioma (mi- el- - lim -fan -je - o / - mah). 

 Same as Elephantiasis. 



Myelomenia (mi-el-cr-me'-ne-ah) [fiveXdg, marrow; 

 prjvir, menses]. A supposed metastasis of the men- 

 strual blood to the spinal cord. 



Myelomeninx (mi-el-o-me'-ninks) [^ve/Ioc, marrow; 

 pr/vtyi-, membrane]. A spinal membrane. 



Myeloneuritis (mi-el-o-nu-ri'-tis). Multiple neuritis 

 combined with myelitis. 



Myelopathia, Myelopathy. (See Illus. Diet.) M. 

 tropica [de Meijer], beriberi. 



Myelopetal { mi-el-op' -et-al) \jivth6c, marrow ; petere, 

 to seek]. Moving toward the myelon ; said of nerve- 

 fibers. 



Myelopore ( mi'-el-o-pdr) [uve'Adc, marrow ; n6poq, 

 pore]. An opening into the spinal cord. 



Myelorrhaphy (mi-cl-or'-af-e) [nn'/nr, marrow ; pa<f>r/, 

 a seam]. The suturing of a severed spinal cord. 



Myolospasm (mi' el -<< spazm) [/ivekor, marrow; oirao- 

 nor, spasm]. Spasm of the spinal cord. 



Myelosyphilis (mi-el-o-sif -il-is). Syphilis of the 

 spine. 



Myelosyphilosis (mi-el-osif-il-o'-sis). Syringomyelia. 



Myelotherapy (mi-el-o-ther'-ap-e). The therapeutic 

 use of bone-marrow extracts. 



Myelotome ' mi-el '-o-tom) [/zve/.oc, marrow; re/ivetv, 

 to cut]. An apparatus for making sections of the 

 spinal cord. 



Myelotoxic (mi-el-o-toks'-ik) [uvt?,6r, marrow ; to^ikov, 

 poison]. Characteristic of or pertaining to the sub- 

 stance having toxic action on the cells of bone-marrow. 



Myelotoxin (mi-el-o-toks' -in). A cytotoxin with speci- 

 fic action upon bone-marrow cells. 



Myenteron (mi-en' tur-on) [//if , muscle ; ivrepov, in- 

 testine]. The muscular coat of the intestine. 



Mygale (mig'-al-e) \_p.vya~A7], the shrew-mouse]. A 

 genus of giant spiders belonging to the Theraphosidee, 

 the so-called trap-door, mining, mason, or bird spiders. 

 Cf. Arana picacaballo. M. heutzii, a poisonous spe- 

 cies of the southern United States. M. ictera, Koch, a 

 poisonous species greatly feared in Egypt, where it is 

 called abu-schabat. M. javanica, a poisonous species 

 of Java. M. klugii, Koch, a venomous species much 

 dreaded in the dry country of the eastern Andes. M. 

 sumatrensis, a poisonous species of Sumatra. 



Mykinulin (mi-kin'-u-lin). See Mycoinulin. 



Mylabris. (See Illus. Diet.) M. cichorii, a cole- 

 opterous, vesicant beetle indigenous to southern Europe, 

 Egypt, China, and India (where it is called Telina 

 fly). In China under the name of pan-neau it is the 

 remedy for hydrophobia. It has all the properties of 

 cantharis and has been used long in Anglo-Indian 

 practice. 



Myocardiograph (mi-o-kar'-de-o-graf) \_fivq, muscle ; 

 napdia, heart; ypa<peiv, to write]. An apparatus for 

 recording the movement of the heart muscles. 



Myocarditis. (See Illus. Diet.) M. chronica fibrosa, 

 atrophy and necrosis of heart muscle due to the obliter- 

 ation of an artery, usually one of the finer branches of 

 the coronary. 



Myocardium. (See Illus. Diet.) M., Fragmenta- 

 tion of, breaking up of the heart muscle due to abnor- 

 mal contraction during the death agony. It is usually 

 found after sudden death. Syn., Fragmentatio cordis ; 

 Myocardite segmentaire (Renaut). 



Myocellulitis (mi-o-sel-u-li'-tis). Simultaneous myositis 

 and cellulitis. 



Myocephalitis (mi-o-sef-al-i'-tis) [,ui'C, muscle; KepaX/j, 

 the head]. Myositis affecting the muscles of the 

 head. 



Myoclonus. (See Illus. Diet.) M., Disseminated 

 [Vanlair]. Syn. of Paramyoclonus multiplex. M. 

 epilepticus, a malady which, according to Gowers, is 

 most nearly allied to senile chorea, being intermediate 

 between chorea and facial spasm and torticollis. M. 

 fibrillaris multiplex, Kny's name for myokymia. 

 M. spinalis multiplex [Lowenfeld]. Syn. ol 

 Paramyoclonus multiplex. 



Myocomma. (See Illus. Diet. ) 2. One of the meso- 

 dermal septa which separate the myotomes from one 

 another. Syn., Myoseptum. 



Myoctonin. (See Illus. Diet.) 2. C 37 H 30 N. i O 8 + 5H..0. 

 An amorphous alkaloid derived from Aconite Iveoe- 

 tonum, Linn. Cf. Lycaconitin ; Lycaconin ; Acolytin. 



Myocyte. (See Illus. Diet.) 2. The layer of cyto- 

 plasm made up of the myonemes in a protozoon. 



Myodegeneration (mi-o-de-)en-ur-a' -shun). Muscular 

 defeneration. 



Myoedema, Myocedema (mi-o-e-de'-mah). I. See 

 Mvoidema (Illus. Diet.). 2. Edema of the muscles. 



Myoepithelial (mi-o-epe-the'-le-al). I. Relating to or 

 consisting of muscle and epithelium. 2. Pertaining 

 to myoepithelium. 



Myoepithelium (mi-o-ep-e-the'-leum) [//iV, muscle; 



