

SPHENION 



1351 



SPHERESTHESIA 



>henion {sfe' '-ne-on) \oyijv, wedge]. The apex of 

 the sphenoid angle of the parietal bone on the surface 

 of the skull. See Craniometric Points. 

 >heno- {sfe' -no-) \o<f>rjv, wedge]. A prefix used to 

 denote connection with the sphenoid bone, or to indi- 

 ;ate a wedge-like shape. 



heno-basilar {sfe' -no-ba' -zil-ar) [c4>i]v, wedge; (3doic, 

 jasel. Pertaining conjointly to the sphenoid bone and 

 he basilar portion of the occipital bone. S. Groove, 

 he depression on the body of the sphenoid bone and 

 he basilar portion of the occipital bone, upon which 

 he pons rests. 

 ; henoccipital {sfe-nok-sip / -it-al) [oorjv, wedge; occi- 

 put, occiput] . Pertaining to the sphenoid and the 

 Kxiptal bone ; spheno-basilar. 



'. henocephalia {sfe - no - sef- a'- le - ah) [aofjv, wedge ; 



£(pa/J/, head]. The condition of a sphenocephalus. 



i henocephalus {sfe - no - sef- al- us) [ayijv, wedge ; 



xipdki], head]. A variety of single autositic monsters 



if the species otocephalus, in which the two eyes are 



veil separated ; the ears are united under the head ; 



he jaws and mouth are distinct ; and the sphenoid 



s altered in shape, so that it is analogous in form 



o what is found normally in birds. 



'heno-ethmoid {sfe' '-no-eth' '-moid) \p6ijv, wedge; 



Qu6q, sieve ; eldoq, like]. Belonging or relating to 



oth the sphenoid and ethmoid bones. 



Saeno-frontal {sfe'-no-frun'-tal) \afyijv, wedge; 



rons, forehead]. Belonging or relating to both the 



phenoid and frontal bones. 



Sienoid {sfe'-noid) [coijv, wedge; tJdoc, likeness]. 



Cuneiform. Relating or pertainingto the sphenoid bone. 



>. Bone, one of the cranial bones at the anterior base 



f the skull, articulating with all the other bones of 



;ie head. S. Fontanel, the membranous interspace 



It the junction of the squamous and coronal sutures of 



le fetal skull. S. Sinus. See Sinus. 



Sienoides {sfe-noi' '-dlz) \_o<t>r]v, wedge; eldog like]. 



sphenoid bone. 

 Eienoido-auricular {sfe-noi' -do-aiv-rik'-u-lar) \o<brp>, 

 i'edge; auriculus, auricle]. Pertaining to the sphe- 

 oid and binauricular diameters of the skull. S.-a. In- 

 ex, the ratio of the minimum sphenoid diameter of 

 le skull with the binauricular diameter, the latter 

 eing taken as loo. 

 Sienoido-frontal {sfe-noi' -do-f run' -tal)\_aoi]v, wedge; 

 -ons, forehead]. Pertaining to the sphenoid and fron- 

 ,il diameters of the skull. S.-f. Index, the relation 

 etween the minimum sphenoid diameter of the skull 

 nd the minimum frontal diameter taken as loo. 

 Sienoido - parietal {sfe-noi' -do-par-i' et-al) [o<t>rji\ 

 edge ; paries, wall] . Belonging or relating to the 

 )henoid and parietal diameters of the skull. S.-p. 

 ndex, the relation between the minimum sphenoid 

 iameter of the skull and the maximum frontal 

 iameter taken as loo. 

 Sieno-malar {sfe' -no- ma' -/ar) [gQtjv, wedge ; mala, the 

 leek]. Pertaining to the sphenoid and malar bones. 

 Sieno-maxillary {sfe' -no-maks' -il-a-re) [aoijv, wedge ; 

 axilla, maxilla]. Pertaining conjointly to the sphe- 

 )id and maxillary bones. S.-m. Fossa. See Fossa. 

 Sienometer (sfe'-nom'-et-er) [a<pi/v, wedge ; fiirpov, 

 easure]. An instrument for measuring the wedge to 

 i : removed in osteotomy for curvature. 

 S leno-occipital {sfe'-no-ok-sif-it-al) [ooi/v, wedge; 

 cipitt, occiput]. Belonging or relating to both the 

 henoid and occipital bones. 

 S eno-orbital {sfe' -no-or' -bit-al) [a^v, wedge ; or- 

 ''*, orbit]. Belonging or relating to both the sphe- 

 >id bone and the orbit. 

 s eno-palatine {sfe' -no-pal' -at-in) [otir/v, wedge ; pal- 

 um, palate]. Pertaining conjointly to the sphenoid 



bone and the palate. S.-p. Foramen, the spheno- 

 palatine notch converted into a foramen by articula- 

 tion with the sphenoidal turbinated bone. S.-p. 

 Ganglion. See Ganglion. S.-p. Notch, a deep 

 notch separating the orbital and sphenoid processes of 

 the palate bone. See Notch. 



Spheno-parietal {sfe'- no -par- i'- et- al) \p01jv, wedge ; 

 paries, wall]. Belonging or relating to both the sphe- 

 noid and parietal bones. 



Spheno-petrosal {sfe'- no -pe - tro'- sal) \aoip>, wedge ; 

 ■jrcrpa, rock]. Pertaining conjointly to the sphenoid 

 bone and the petrous portion of the temporal bone. 



Sphenopharyngeus {sfe-no-far-inje'-us). See Mus- 

 cles, Table of . 



Spheno-pterygoid {sfe' -no-ter' -ig-oid) \?$ijv, wedge ; 

 Tvrepv^, wing ; ados, like]. Pertaining to the body 

 of the sphenoid bone and to the pterygoid process. 



Sphenorbital {sfe -nor' -bit-al) \ptyi[v, wedge; orbita, 

 orbit]. See Spheno-orbital. 



Sphenosis {sfe-no' -sis) [atyijv, wedge]. The wedging 

 of the fetus in the pelvis. 



Spheno-squamosal,Spheno-squamous(^ / -«^-j-fe , a- 

 mo'-sal, sfe' -no-skwa' -mus) [<ro//i', wedge ; squama, 

 scale]. Belonging or relating to both the sphenoid 

 bone and the squamous portion of the temporal bone. 



Spheno-temporal {sfe' -no-tem' -po-ral) \aoijv, wedge ; 

 tempora, the temple ; temporal~\. Pertaining con- 

 jointly to the sphenoid and temporal bones. 



Sphenotic {sfe-no' -tik) [co#v, wedge ; oig, ear]. Per- 

 taining to the sphenoid bone and the otic capsule. 



Sphenotresia {sfe-no-tre / -ze-ah) \g4>tjv, wedge ; Tprjaiq, 

 perforation], A variety of craniotomy in which the 

 basal portion of the fetal skull is perforated. 



Sphenotribe {sfe'-no-trib) [gqtjv, wedge ; rpifieiv, to 

 rub]. The instrument used in performing spheno- 

 tresia. 



Spheno-turbinal, Spheno-turbinate {sfe-no-ter' -bin- 

 al, sfe-no-ter' -bin at) \coijv, wedge; turbo, a. scroll]. 



1. Pertaining to the sphenoid and turbinate bones. 2. 

 One of the sphenoidal spongy bones situated cephalad 

 of the body of the sphenoid. 



Spheno-vomerine {sfe' -no-vo'-mer-in) [ootjv, wedge ; 



vomer, vomer]. Pertaining to the sphenoid bone and 



the vomer. 

 Spheral {sfe'-ral) [aodipa, sphere]. Like a sphere. 

 Sphere {sfer) [coaipa, sphere]. I. A ball or globe. 



2. A space. S. of Attraction, a clear spot in the 

 cell-plasma, outside of and close to the nucleus of an 

 ovum undergoing mitosis. It contains the centrosoma 

 of Boveri, and is the center of the formation of the 

 amphiasters in karyokinesis, q. v. S. -crystal. Same 

 as Sphceraphide. S., Embryonic. See S., Segmenta- 

 tion-. S. -Granule, a large granular corpuscle found 

 in serous exudations. S., Hearing, the area in the 

 brain which is supposed to be the seat of hearing. It is 

 in the temporal lobe. S., Motor, a region in the central 

 nervous system which, when stimulated, gives rise to 

 motion. S., Protoplasmic Primordial. See S., 

 Segmentation-. S., Segmentation-, a nucleated cell 

 derived from division of the vitellus in the process 

 of segmentation. S., Sensory, a sensory area of the 

 central nervous system. S., Vitelline, S., Yolk-, the 

 mulberry-like mass of cells that results from the fission 

 of the substance of the ovum after fertilization. S., 

 Yeast-, in biology, an aggregation of certain sprouting 

 forms of the genus Mucor. 



Spherenchyma {sfe - reng 1 '- kirn - ah) [o&iipa, a ball; 



eyxvfza, an infusion]. In biology, applied to a form 



of parenchyma in which the cells are globular. 

 Spheresthesia {sfe-res-the' -ze-ah) [aodipa, globe ; aladr)- 



aiq, sensation]. Perverted feeling, as of the contact 



of a ball or globe-shaped body. 



