MYOPATHY 



830 



MYOSINOGEN 



gressiva. M. Facies, "fades myopathique ; " a 

 peculiar form of expression seen in infantile forms of 

 myopathic muscular atrophy. It is characterized by 

 imperfect movement of the facial muscles, sinking in 

 of the cheeks, and drooping of the lower lip. 



Myopathy (mi-op' -ath-e)\jxvg, muscle ; izakiog, suffering] . 

 Any disease of a muscle or of the muscular system. 



Myope (mi' -dp) \_pvo)\\j, short-sighted]. A person 

 affected with myopia. 



Myopericarditis (mi-o-per-ik-ar-di'-tis) \_pvg, muscle ; 

 ■Kepi, around ; napdia, heart; trig, inflammation]. A 

 combination of pericarditis with myocarditis. 



Myophagocyte (tni-o-fag' '-o-sli) \jivg, muscle; ipayelv, 

 to eat ; nvrog, cell]. Metschnikoff's term for a phago- 

 cyte produced from muscular tissue. 



Myophan (mi'-o-fan) [pig, muscle ; faiveiv, to appear]. 

 In biology, an ectoplasmic layer containing muscle- 

 fibrillae, found in many invertebrates (Infusoria). Cf. 

 Myoderma. 



Myophone (mi'-o-fon) \_pvg, muscle; cpuvi], sound]. 

 An instrument for hearing the sounds produced during 

 the contraction of a muscle. 



Myophonia (mi-o-fo' -ne- ah) [pvg, muscle; <pwvr/, 

 sound]. Muscle-sound. 



Myophore (mi'-o-for)\_pvg, muscle; <f>epeiv, to bear]. In 

 biology, any specialized apparatus for the attachment 

 of a muscle. 



Myophorous (mi-off'-or-us) \_pvg, muscle ; (pepeiv, 

 to bear]. Relating to or connected with a muscle, as 

 a myophore. 



Myophrisc (mi' -o-frisk) [pi>g, a muscle ; Qptaaeiv, to 

 ruffle or throw into ripples]. In biology, contrac- 

 tile, filamentous processes supposed to perform hydro- 

 static functions, found arranged on the sarcodyctium 

 in a circle around each skeletal spine of the Acantho- 

 metridce among the Protozoa. 



Myophysical (mi-o-Jiz' -ik-al) [pvg, muscle ; 6vaiKr], 

 physics]. Appertaining to the physics of muscular 

 action. 



Myophysics (mi-o-jiz'-iks) \jivg, muscle; (pvaucrj, phys- 

 ics]. The physics of muscular action. 



Myopia (mi-o' '-pe-ah) [pbeiv, to close ; uifi, eye ; myopes 

 having the habit of partially closing the lids to avoid 

 spheric aberration]. Near-sightedness ; an optic defect, 

 usually due to too great length of the antero-posterior 

 diameter of the globe, whereby the focal image is 

 formed in front of the retina. M., High, a degree of 



The Formation of the Image in a Myopic Eye, in 

 front of the retina. 



myopia greater than 6.5 diopters. M., Low, one less 

 than two diopters. M., Malignant, rapidly progress- 

 ing myopia. M., Progressive, continuous increase 

 of myopia, due to increasing elongation of the eyeball. 



Myopic {mi-op 1 ' -ik) [pveiv, to close ; inp, eye]. Per- 

 taining to or having the nature of myopia. Near- 

 sighted. M. Crescent, a yellowish-white, crescentic 

 area about the papilla, due to atrophy or breaking 

 away of the choroid, and exposure of the sclerotic ; 

 it is seen in myopia, but often, also, in other refractive 

 derangements. 



Myopiesis (mi-o-pi'-es-is) [pvr, muscle ; nieaig, press- 

 ure]. The squeezing or kneading of a muscle as a 

 therapeutic measure. 



Myopiosis (1111-0 pi-o' -sis) . Synonym of Myopia. 



Myoplast (mi' - o - plast) \_pvg, muscle; tvAacoEiv, to 

 mold]. A muscle-producing cell. 



Myoplastic (mi-o-plas' '-tik) [pvg, muscle ; nlaaaeiv, to 

 mold]. Producing muscle ; pertaining to a myoplast. 

 M. Bodies, the embryonic cells from which muscular 

 fibers are developed. 



Myoplegia (mi-o-ple' '-je-ah) \jilg, muscle ; irfyrf, 

 a stroke]. A condition of diminished muscular power, 

 or of muscular paresis. 



Myopodiorthosis (mi-o-po-di-or-tho' '-sis) . Synonym of 

 Myoporlhosis. 



Myopolar (mi-o-po'-lar) [pvg, muscle; nolog, pole]. 

 Pertaining to muscular polarity, electric or other. 



Myoporthosis (mi-o-por-tho' -sis) [pvuip, near-sighted; 

 bpOog, straight]. The correction of myopia. 



Myopresbytia (mi-o-pres-bish' -e-ah) [pvuf, near- 

 sighted ; TrpeafiijTijg, old-sighted] . Combined myopia 

 and presbyopia. 



Myoproteose (mi-o-pro'-te-oz). See Myoalbntnose. 



Myopsia (mi-ops' -e-ah). Synonym of Myiodesopsia. 



Myopsin (mi- ops' -in) . A powerful proteolytic substance 

 said by Defresne to occur in pancreatic juice. 



Myopy (mi f -o-pe). Synonym of Myopia. 



Myorrheuma (mi-or-u' '-mah) [pvg, a muscle ; pevpa, a 

 flow]. A synonym of Muscular Rheumatism or 

 Myalgia. 



Myorrhexia, Myorrhexis (mi - or - eks' - e - ah, mi-or- 

 eks' -is) \jivg, muscle ; piftig, a tearing]. Laceration 

 or rupture of a muscle. 



Myosalgia (mi-o-sal' -je-ah). See Myalgia. 



Myosarcoma (mi-o-sar-ko' -mah) [pvg, muscle ; erapf, 

 flesh; bpa, tumor, //., Myosarcoma ta~]. A sarcoma 

 with myomatous elements, or one that has originated 

 in a myoma. 



Myosarcomatous (?ni-o-sar-ko' -mat-its) [pvg, muscle; 

 ffdpf, flesh ; bpa, tumor]. Affected with, or of the 

 nature of, myosarcoma. 



Myosclerosis (mi-o-skle-ro' '-sis) [pvg, muscle ; an?.>ip6g, 

 hard]. A temporary hardening of a muscle, often 

 of the sterno-cleido-mastoid, sometimes seen in young 

 infants. 



Myosclerotic (mi-o-skle-rot f -ik) [ui>f , muscle ; aahipbg, 

 hard]. Pertaining to the hardening of muscles, espe- 

 cially from connective-tissue overgrowth. M. Paral- 

 ysis. See Paralysis, Pseudo-hypertrophic. 



Myoscope (mi' -o-skop) \_pvg, muscle ; okotteiv to in- 

 spect]. An apparatus used in observing the contrac- 

 tion-phenomena of muscles. 



Myoseism (mi-o-se' -izm) , Myoseismia (mi-o-se-iz'-me- 

 ah) \_pvg, muscle ; aeicrpog, a shake] . A symptom that 

 consists in repeated stops in the course of muscular 

 contractions by which the whole movement is rendered 

 jerky. When this jerky movement affects the ocular 

 muscles, it causes an irregularity that may be mistaken 

 for nystagmus. A similar irregularity renders sj 

 and writing jerky and the gait staggering. The pa- 

 tient is unable to maintain his equilibrium with his 

 eyes shut. 



Myoseptum (mi - o - sep' - tui/t) \_pvg, muscle ; septum, 

 septum]. The intermuscular septum between the 

 metameres of muscles of certain animals, as of fis 



Myosin (mi'-o-sin) [//fwv, muscle]. A proteid of the 

 globulin class, the chief proteid of muscle. Its coag- 

 ulation in muscle after death causes rigor mortis. Hy- 

 drochloric acid converts it into syntonin. It is soluble 

 in dilute saline and dilute alkaline solutions, and i" 

 acids; it is insoluble in water and is precipitated by 

 alcohol. M., Peptone. Synonym of Mvosinose M., 

 Vegetable, a substance resembling myosin, found in 

 almonds, maize, peas, and other vegetables. 



Myosinogen (ini-o-siii'-o-jen) [//i'wr, muscle ; ; 

 to beget]. One of the proteids of muscle-plasma. 



