CINERE1 M 



299 



CIR< I I VI [ON 



substance extending backward above the optic com- 

 missure from the termination of the corpus callosum to 

 tin- tuber cinereum. 



Cinereum, Tuber. Sec Tuber Cinereum. 



Cineritious (sin-er-isk'-us) [eineres, ashes]. Ash-like 

 or pertaining to ashes. C. Substance, the cortex of 

 the brain, from the color of the same. C. Tubercle, 

 the tuber cinereum. 



Cinesiology [sin-es-e-ol 1 '-o-je). See Kinesiology. 



Cinesis [sin-e'-sis ). See Kinesis. 



Cinesitherapy (.7;/ es-e-ther / -a-pe). See Kinesitherapy. 



Cinetica {sin-ef '-ik-ah) [mvelv, to move]. Medicines 

 or diseases that affect the motor apparatus. 



Cingulum [sing* '-gu-lum) [cingere, to gird: pl.,Cin- 

 gula~\. I. A girdle or zone ; the waist. 2. Herpes 

 zoster, or shingles, q. v. 



Cinnabar \sin f -ab-ar) [tuwafiapi, a pigment]. Mercuric 

 sulphid, HgS. See Hydrargyrum and Vermilion. C- 

 green. Same as Chrome-green. 



Cinnamene (sin'-am-lri). See Styrol. 



Cinnamic {sin-am f -ik\ [icivvdfiufiov, cinnamon]. Per- 

 taining to or derived from cinnamon. C. Acid. See 

 Acid. C. Aldehyd. See Aldehyd. 



Cinnamomum, or Cinnamon {si>i-a»i-o f -nium, or 

 sin'-am-ori) Tiuwdfiufiov, cinnamon : gen. ,( 'innamomi"]. 

 The inner bark of the shoots of several species of 

 Cinnamomum, native to Ceylon and China, the latter 

 being known in commerce under the name of cassia. 

 Its properties are due to a volatile oil. It is an 

 agreeable carminative and aromatic stimulant, useful 

 when combined with opium for flatulence, colic, 

 enteralgia, etc. C, Aqua, 2 parts of oil in iooo of 

 water. Dose j|j-ij. C, Ext. Fid. Arom., contains 

 aromatic powder io parts, alcohol 8 parts. Dose 

 n\,x-xxx. C, Oleum, the volatile oil. Dose gtt. 

 j-v. C, Pulv. Comp. (B. P.), cinnamon bark, 

 cardamom-seeds, and ginger. Dose gr. iij-x. C. sai- 

 gonicum, Saigon cinnamon. C, Spt., IO per cent, 

 of the od in spirit. Dose ITlv-xxx. C, Tinct., io 

 per cent, of the powdered bark in alcohol. Dose .^ss— 

 ij. C. zeylanicum, Ceylon cinnamon. Pulvis 

 aromaticus, aromatic powder, cinnamon, ginger, aa 

 35, cardamom, nutmeg, aa 15. Dose gr. x-xxx. C- 

 brown. Same as Pkenylene-brown. 



Cinnamyl (sin'-am-il) [nivva/nufiov, cinnamon], C 9 ILO. 

 The radicle believed to exist in cinnamic acid. 



Cionectomy {si-on-fk'-to-me) [kiuv, the uvula; inrou?/, 

 a cutting out]. Ablation of the uvula. 



Cionitis (si-on-i'-tis) \_Kiav, the uvula ; crig, inflamma- 

 tion]. Inflammation of the uvula. 



Cionoptosis (si-pn-op-to'-sis) [/a'ow, uvula ; rcruair, a 

 drooping]. Prolapse of the uvula. 



Cionorrhaphia (si-on-or-af-e-ah) [jduv, the uvula ; 

 pa<i>f/, a suture] . See Staphylorrhaphy. 



Cionotome {si-on'-o-tom} [/c/ov, the uvula ; muor, cut- 

 ting]. An instrument for cutting off the uvula. 



Cionotomy {si-on-otf -o-me) \klwv, uvula; TOfifj, a sec- 

 tion]. Incision of the uvula. 



Circinate (sir' -sin-fa) Tcircinalus, circular]. In biology, 

 rolled inward from the top, like a crozier. C. Erup- 

 tion. See Wandering Rash. 



Circinus [sir* -sin-us) [idpiuvog, circle]. Herpes zoster ; 

 zona. 



Circle (sir^-hl) [tcipKor, a circle]. A ring; a line, every 

 point of which is equi-distant from a point called the 

 center. C. of Diffusion. See Diffusion. C.ofHaller, 

 1. The plexus of vessels formed by the short ciliary 

 arteries upon the sclerotic, at the entrance of the optic 

 nerve. 2. The circulus venosus mammae. See also 

 Circulus. C. of Willis, the remarkable arterial anasto- 

 mosis at the base of the brain. The passage between 

 the anterior cerebral arteries anteriorly, and the internal 



carotifls and middle and poster! ral arteries pos- 



teriorly, h\ communicating vessels. 



Circi-k of Willis. 

 1. Middle cerebral artery. 2. Internal carotid artery. 3. Pos- 

 o- median perforating. 4. Posterioi cerebral artery. 

 5. Superior cerebellar artery. 6. Anterior infi rior cerebellar 

 artery, 7. Anterior communicating artery. S. Antero-Iateral 

 perforating. 9. Anterior choroid. 10. Posterior communi- 

 cating. 11. Posterior choroid. 12. Basilar artery. 13. Crus 

 cerebelli cut. 



Circuit {ser'-kit) \circuitus, a going round]. The course 



of an electric current. C. -breaker, an apparatus for 



interrupting the circuit of an electric current. 

 Circulation (sir-iu-la-'shun) \circulatio, a circular 



course]. The passage of the blood through various 



\ 1 -sels ; distinguished as 



capillary, fetal, portal, 



pulmonary, etc. C, 



Cross, a laboratory ex- 

 periment in which the 



vessels in one vascular 



area of an animal are 



separated from the rest 



of the circulation by 



ligation of anastomos- 

 ing channels, and then 



supplied with blood 



from the circulation of 



a second animal. In 



this way, for example, 



the vascular area of the 



head may be isolated, 



and precluded from 



receiving chloroform 



inhaled by the lungs, 



but which is distributed 



to other -parts of the 



body. By connecting 



the cerebral ends of the 



severed carotid arteries 



of one dog with the car- 

 diac ends of the severed 



carotids of an other dog, 



the cerebral and gen- 

 eral circulatory systems 



of the first dog may pre- 

 sumably be separated. 



The first animal is 



called the fed, and the Scheme of the Circulation. 



animal supplying the a. Right, b, left auricle. A. Right, 



blood the feeder. 1 he 



experiment is of little 



value. C, Collateral, 



that through branches 



and secondary channels 



after stoppage of the 



principal route. C, 



Fetal, that of the 



fetus, including the circulation through the placenta 



P.. left ventricle. 1. Pulmonan 

 artery. 2 Aorta. /. Area of pul- 

 monary circulation. K. Upper 

 area of systemic circulation- 

 G Lower area of systemic cir- 

 culation, o. The superior vena 

 cava. ;/. Inferior vena cava, d, 

 d. Intestine. »i Mesenteric ar- 

 tery a. Portal vein. L. Liver. 

 h. Hepatic vein. Landois.) 



