LINE 



338 



LIPOMA 



last bicuspid and first molar teeth, and indicating the 

 course of the lacrimal sac and nasal duct. L., Monro's, 

 a line drawn from the umbilicus to the anterior superior 

 spine of the ilium. L., Ophryoninion, L., O., 

 Equatorial, a line passing a little above the insertion 

 of the ear-muscle and intersecting the ophryon and 

 inion. L., O., Median, one passing over the vertex 

 of the skull and connecting the ophryon and inion. 

 L., Parasternal. See under Parasternal (Illus. 

 Diet.). L., Perpendicular (of ulna), on the dorsal 

 aspect of the ulna a longitudinal line of demarcation 

 between the smooth inner surface covered by the ex- 

 tensor carpi ulnaris and the outer irregular surface 

 covered by the extensor muscles of the thumb and the 

 extensor indicis. L., Planobasilar, the line drawn 

 in the median plane, from the anterior border of the 

 sphenoidal plane to the basion. L., Planospinal, a 

 straight line drawn in the median plane from the 

 anterior margin of the sphenoidal plane to the sub- 

 nasal or spinal point. L., Profile (Frankfort), one 

 drawn from the intersuperciliary point to the alveolar 

 point. L. of Regard, in optics, the line connecting 

 the center of rotation of the eye with the point of fixa- 

 tion or of regard. L.s, Reid's, three imaginary lines 

 serving for measurements in craniocerebral topography; 

 one of them, the base-line, is drawn from the lower 

 margin of the orbit through the center of the external 

 auditory meatus to just below the external occipital 

 protuberance. The two others are perpendicular to it, 

 one corresponding to the small depression in front of 

 the external auditory meatus, the other to the posterior 

 border of the mastoid process. The fissure of Rolando 

 extends from the upper limit of the posterior vertical 

 line to the point of intersection of the anterior line 

 and the fissure of Sylvius. L., Richter-Monro's, 

 Monro's line. L. rolandica, a line constructed by 

 Kronlein passing from the point of junction of the linea 

 verticalis retromastoidea with the iniomedionasal line 

 to the point of juncture of the linea verticalis zygoma- 

 tica with the linea horizontalis supraorbitalis. L., 

 Rolando's, begins on the equatorial ophryon inion 

 line r 4 ff 2 5 from the ophryon and on the median ophryon- 

 inion line yqts an< l connects the points. L., Roser- 

 Nelaton's. Same as Nelaton' s Line. L.s, Scalari- 

 form, dark lines visible between the muscular cells of 

 the heart after staining with silver nitrate. L. semi- 

 circularis inferior ossis occipitis, the inferior curved 

 line of the occipital bone. L. semicircularis inferior 

 ossis parietalis, the temporal line. L. semicircu- 

 laris ossis frontalis, the temporal crest. Linese 

 semicirculares ossis ilii, the curved lines on the 

 dorsum of the ilium. L. semicircularis superior 

 ossis occipitis, the superior curved line of the occipital 

 bone. L. semicircularis temporum, the temporal 

 crest. L., Spiral (of femur), one on the ventral as- 

 pect separating the neck and shaft and passing between 

 the tubercle and a point close in front of the lesser 

 trochanter. Syn., L., Anterior trochanteric. L. 

 Sylvii. I. A line constructed by Kronlein from the 

 point of juncture of the linea verticalis zygomatica with 

 the linea horizontalis supraorbitalis and intersecting the 

 linea verticalis retromastoidea at a point midway be- 

 tween the point of its crossing the linea horizontalis 

 supraorbitalis and the median inionasal line. 2. Syl- 

 vian line (Thane). It corresponds to the ramus pos- 

 terior horizontalis fissune Sylvii. It passes from the 

 nasion to the lambda and measures on the median 

 ophryon-inion line ^ z above the inion, and connects 

 this with the point of Sylvius. L. temporalis in- 

 ferior ossis parietalis, the inferior curved line of the 

 parietal bone. L. temporalis ossis frontis, the 

 temporal ridge. L. temporalis superior parietalis, 



the superior curved line of the parietal bone. L. ter- 

 minalis (pelvica), the iliopectineal line. L. verti- 

 calis auricularis, a line constructed by Kronlein per- 

 pendicular to the linea horizontalis auriculoorbitalis at 

 the middle of the articulation of the lower jaw. L. 

 verticalis retromastoidea, a line constructed by 

 Kronlein perpendicular to the linea horizontalis aurie- 

 ulo-orbitalis at the posterior border of the base of the 

 processus mastoideus. L. verticalis zygomatica, a 

 line constructed by Kronlein perpendicular to the linea 

 horizontalis auriculoorbitalis at the middle of the 

 zygoma. L.s, Voigt's Boundary, the lines which 

 divide the regions of distribution of two peripheral 

 nerve-tunks. L., Waldeyer's. See L., FarrJs 

 White. L., White (of the pelvic fascia). See under 

 White (Illus. Diet.). 



Lingence (l/n'-jenz). See Lincture (Illus. Diet.). 



Lingua. (See Illus. Diet.) L. dissecta (Griinwald). 

 See Glossitis, Dissecting (Illus. Diet.). L. exertoria, 

 prolapse and hypertrophy of the tongue. L. exigua, 

 the epiglottis. L. nigra. See GlossopJiytia (Illus. 

 Diet.). L. vituli, L. vitulina, macroglossia. 



Lingula. (See Illus. Diet.) L. auriculae, the cartil- 

 aginous projection toward or into the upper portion of 

 the lobe of the ear. L. of the sphenoid, L. sphe- 

 noidalis, a small ligulate process extending backward 

 in the angle formed by the body of the sphenoid ami 

 the ala magna. 



Lingular {linf -gu-lar) {lingula, a little tongue]. Of or 

 pertaining to a little tongue. 



Linition (lin-ish'-un) \Jinere, to besmear]. The pro- 

 cess of applying a liniment. 



Linoxyn (lin-oks'-in) [/.ivov, flax; oxygen"]. C 32 H 54 - 

 O n . A neutral elastic amorphous mass resulting from 

 the oxidization of linoleic acid; soluble in a mixture 

 of alcohol and chloroform. 



Lint. (See Illus. Diet.) L., Marine, oakum. L.- 

 paper, an absorbent material made from wood-pulp. 

 L., Picked, charpie. 



Lintin (lin'-tin). Absorbent cotton rolled or compressed 

 into sheets. 



Lip. (See Illus. Diet.) 2. The border of a wound. 

 L., Double, a hypertrophied lip with formation of a 

 longitudinal cleft-like depression, giving the appear- 

 ance of being double. L., Hare-. See Ihire-lip 

 (Illus. Diet.). 



Lipase (lip'-az) [7.'nroc y fat]. A ferment of the gly- 

 cerids, a fat-splitting enzyme contained in the pan- 

 creatic juice, in blood-plasma, and in many plants, as 

 hemp, poppy, maize, colza, Penicillium glaucum, etc. 

 Its action is reversible ; it may separate fats by hydrol- 

 ysis into fatty acid and glycerin, the reaction ceasing 

 when the products of the hydrolysis reach a definite 

 concentration in consequence of equilibrium being es- 

 tablished, or it may effect synthesis, as is shown by its 

 action on ethyl butyrate. Syn., Pialyn ; Steapsin. 



Liphemia, Liphaemia (li-fe'-me-ah). See Oligemia 

 (Illus. Diet.). 



Lipiodol (lip-i'-o-dol). An oil containing 40% of iodin 

 in eacli cubic centimeter. 



Lipobromol (lip-o-/>ro / -inol). Oil of poppy seed com- 

 bined with 33.3% of bromin; a bland, almost tasteless 

 preparation. 



Lipocardiac (lip-o-har / -a'e-ah) [//T(»;, fat; naptVia, i\\t\ j 

 heart]. Pertaining to a fatty heart. 



Lipogenin (lip-oj'-en-in). An ointment base occurring 

 in solid and liquid form, said to consist of a mixture of 

 fatty acids. 



Lipolysis (Itp-oF-is-is) [/i/n-oc, fat; ziietv, to loose]. 

 The decomposition of fat. 



Lipolytic (///• -ol-it'-ik). Fat-splitting. 



Lipoma. (See Illus. Diet. ) L. capsulare, Virchow's 



