SPERMATOMERITE 



483 



SPINOMUSCILAR 



Sperm atomerite (spur-maf -o-mer-it). See Spermato- 

 wttre Illus. Diet.). 



Spermatozoic {spur-mat-o-zo / -ik). See Spermatozoon 

 (Illus. Diet.). 



Spermatozoicide (spur-/nal-o-zo / -is-id ) [a^ipfia, seed; 

 £wov, animal; ccedere, to kill]. I. Destructive to 

 spermatozoa. 2. An agent destructive to spermatozoa. 



Spermocenter (spur-mo-sen' -ter). The sperm-centro- 

 somes during fertilization of the egg. 



Spermolysin [spur- mol ' -is-iri) [a-ipua, seed ; ?A-eiv, to 

 loose]. Metchnikoff's name for a cytolysin produced 

 by inoculation with spermatozoa. Syn., Spermotoxin. 



Spermolysis {spur-mol* -is-is). Dissolution of spermat- 

 ozoa. 



Spermotoxin (spur-mo-toks-' in). See Spermolysin. 



Sphacelotoxin (sfas-el-o-toks* -in) [sphacelia, a stage in 

 the growth of ergot; to.xicum, a poison]. C^H^C^. 

 A yellowish, pulverulent body obtained from ergot, 

 soluble in water, soluble in ether, chloroform, alco- 

 ol, and alkaline solutions. It is used as a tonic, as- 

 ingent, and emenagog. Dose, %—\% gr. (0.032- 

 1 gm. ). Syn., Spasmotin ; Spasmotoxin. 

 hserococcus (sfe-ro-kok / -us) [arralpa, a ball; kokkoc, 

 berry]. A genus of marine Alga of the order 

 Spharococcacece. S. compressus, Azardh., is said to 

 furnish in part the Japanese isinglass or agar-agar of 

 commerce. 



Sphenoid. (See Illus. Diet.) 2. The sphenoid bone. 



Sphenoidale (sfe-noid-a'-le) [neuter of sphenoidalis, 

 sphenoidal]. The sphenoid bone. S. basilare an- 

 terius, the anterior portion of the body of the sphe- 

 noid. S. basioposticum, the lower portion of the 

 body of the sphenoid. S. laterale posterius, the 

 lateral portion of the sphenoid. Sphenoidalia lat- 

 eralia, the greater wings of the sphenoid. 



Sphenoiditis \sfe-noid-i'-tis). Inflammation of the 

 sphenoidal sinus. 



Sphenotripsy (sfe-no-lrip'-se) [rsfyfyv, wedge ; rptfieiv, 

 to rub]. Crushing of the fetal skull. 



Spherular. (See Illus. Diet. ) S. Theory. See under 

 Theory. 



Sphincter. (See Illus. Diet. ) S. antri pylorici. See 

 under Muscles. S. gulae, the constrictor of the 

 pharynx. S., Henle's, the striated muscular fibers 

 which encircle the prostatic and membranous portions 

 of the urethra. S., Hyrtl's. See S., Nilatori s. 

 S. ilei, the ileocecal valve. S. intestinalis. See S. 

 ani internal, in Table of Muscles (Illus. Diet. ). S. 

 labiorum, the orbicularis oris muscle. S. laryngis, 

 the aryepiglottic muscles of both sides surrounding the 

 laryngeal opening. S., Nelaton's, a circular bundle 

 of rectal muscular fibers situated from 8 to IO cm. 

 above the anus, on a level with the prostate. It is not 

 constant, and when present it generally occupies only 

 a part of the circumference of the bowel. S., 

 O'Beirne's, a thickened, circular bundle of muscular 

 fibers, situated in the rectum, just below its junction 

 with the colon. S. oculi, S. palpebrarum, the or- 

 bicularis palpebrarum muscle. S. cesophageus. See 

 Foramen, Esophageal (Illus. Diet.). S., Oral, the 

 orbicularis oris. S. pharyngolaryngeus, the inferior 

 constrictor of the pharynx, the anterior cricothyroid 

 and the thyroid muscles considered as one. S. pylori- 

 cus. See under Muscles. 



Sphincteroscope (sfingk-ter' '-o-skop) \a6iyKTT/p, sphinc- 

 ter; <7Ko-e~n>, to examine]. An instrument for making 

 visual inspection of a sphincter. 



Sphincteroscopy (sfingk-ter-os* -ko-pe) [adiynTrjp, 

 sphincter; ono-eh; to examine]. Visual inspection of 

 a sphincter by means of special instruments. 



Sphinctrate (sfingk'-trdt). Contracted or constricted 

 as if by a sphincter. 



Sphygmochronography {sfig-mo-kro-nog'-raf-e) 

 [<T0r- nor, pulse ; ,\t >m '"'.'> time ; j/wptw, to write]. The 

 registration of the extent and oscillations of the pulse- 

 wave. 



Sphygmogenin {sfig-moj r -en-in) [<7©i'} nor, pulse ; ; fr- 

 iar, to produce]. A substance isolated by Frankel 

 from the suprarenal capsule which causes increase of 

 blood-pressure. It is used as an antidote in nicotin 

 poisoning. 



Sphygmopalpation (sfig-mo-palpa'-shun). The pal- 

 pation of the pulse. 



Sphyra [sft'-rah) \co~vpa, a hammer]. The malleus. 



Sphyrectomy {sfi-rek'-to-me) [trfvpa, a hammer; Ik- 

 toui,, excision]. Excision of the malleus. 



Sphyrotomy {ffi-rot'-o-me) [aplpa, a hammer; rouij, a 

 cutting]. Surgical removal of part of the handle of 

 the malleus. 



Spider. (See Illus Diet.) S., Menarody, a poison- 

 ous species of Latrodectus found in Madagascar. S.s, 

 Poisonous. See Clupione, Cteniza, Epeira, Galeodes, 

 Latrodectus, Lycosa, Aletropelma, A/ygale, Nemesia, 

 Phidippus, Rhax, Theraphosa, Trochosa. 



Spina. (See Illus. Diet.) S. accessoria ischii, an 

 inconstant projection into the great sciatic notch at the 

 junction of the ischium and ilium. S. angularis, 

 the spine of the sphenoid bone. S. ischiadica, S. 

 ischiatici, S. ischii. See Spine of Ischium (Illus. 

 Diet.). S. nodosa, rachitis. 



Spinalgia (spi-nal'-je-ah) \jpina, a spine; a'/}<K, 

 pain] . Tenderness of a vertebral spine to pressure. 



Spinant (spi'-nant). An agent stimulating the spinal 

 cord. 



Spindle. (See Illus. Diet.) S., Central, the linin 

 filaments spanning the interval between the centrosome 

 at the completion of the prophase. 



Spine. (See Illus. Diet. ) S., Angular, curvature of 

 the spine. S., Civinini's, a small spine on the outer 

 border of the external pterygoid plate giving attach- 

 ment to the pterygospinous ligament. S., Henle's, 

 spina suprameatum. An inconstant small spine at the 

 junction of the posterior and superior walls of the ex- 

 ternal auditory meatus. It serves as a landmark in 

 trephining of the mastoid process. S., Navicular, a 

 pointed projection on the inner edge of the navicular 

 bone. S.. Spix's, the bony spine at the inner border 

 of the inferior dental foramen giving attachment to the 

 sphenomaxillary ligament. S., Trochlear, a small 

 projection on the upper ventral part of the inner wall 

 of the orbit for the trochlea. S., Zygomatic, a pro- 

 jection from the zygomatic process. 



Spinicerebrate (spi-ni-ser'-e-brdt). Furnished with a 

 brain and spinal cord. 



Spinideltoid [spi-ni-del'-toid ). The part of the del- 

 toid muscle arising from the spine of the scapula. 



Spinifugal (spi-nif'-u-gal) [spina, spine; fugert, to 

 flee]. Moving from the spinal cord. 



Spinipetal {spi-nip'-et-al) [spina, spine; peter e, to 

 seek]. Moving toward the spinal cord. 



Spinitrapezius ( pi-ni-tra-pe' -ze-us). The spinal part 

 of the trapezius as distinguished from the cranial 

 part. 



Spinogalvanization {spi-no-gal -vani-za' -shun). Gal- 

 vanization of the spinal cord. 



Spinoglenoid (spi-no-glen'-oid }. Relating to the spine 

 of the scapula and the glenoid cavity. 



Spinol (spin'-ol). An extract of young, fresh spinach 



{Atriplex kortensis, L. ) leaves containing about 2.6^ 



of iron and occurring both as a liquid and a powder. 



It is used in the spinach cure for children. Dose, 



• 1-8 gr. several times daily. 



Spinomuscular {spi-nomus' '-ku-lar). Relating to the 

 spinal cord and the muscles. 



