CINEREUM 



299 



CIRCULATION 



substance extending backward above the optic com- 

 missure from the termination of the corpus callosum to 

 the tuber cinereum. 

 Cinereum, Tuber. See Tuber Cinereum. 

 Cineritious (siner-ish'-us) [cimres, 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'-o-jc). See Kinesiology. 

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

 Cinesitherapy (sin-es-e-ther 1 '-a-pe). See Kinesitherapy. 

 Cinetica (sin-ef '-ik-ah) [tuvelv, to move]. Medicines 



or diseases that affect the motor apparatus. 

 Cingulura (sing / -gu-lum) \cingere, to gird : //. , Cin- 

 .•]. i. A girdle or zone; the waist. 2. Herpes 

 iter, or shingles, q. v. 

 Cinnabar i sin'-ab-ar) \_Ktwa3api, a pigment]. Mercuric 

 sulphid, HgS. See Hydrargyrum and Vermilion. C- 

 green. Same as Chrome-green. 

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

 Cinnamic (sin-am' '-ik) [uwauuuov, cinnamon]. Per- 

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

 WC. Aldehyd. See Aldehyd. 

 namomum, or Cinnamon (sin-am-o' -mum, or 

 n) [Kiwafiufiov , cinnamon : gen. ,Cinnamomi~\. 

 I*: inner Dark of the shoots of several species of 

 \nnamomum, native to Ceylon and China, the latter 

 Deing 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 loco of 

 water. Dose 'j— ij. C., Ext. Fid. Arom., contains 

 aromatic powder io parts, alcohol 8 parts. Dose 

 Tt\,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-xl C. sai- 

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

 of the oil in spirit. Dose TTLv-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 Phenylene-brown. 

 ^innamyl (sin'-am-il) [Kivvafiuiwv , cinnamon], CgH.O. 



The radicle believed to exist in cinnamic acid, 

 ^ionectomy (si-on-ek' -to-me) \ju<jv, the uvula; kurofir;, 

 a cutting out] . Ablation of the uvula. 

 ionitis 1 si-on-i' -lis) \kIuv, the uvula; trig, inflamma- 

 tion]. Inflammation of the uvula, 

 ionoptosis (si-on-op-to' '-sis) [aitjv, uvula ; Trrucig, a 

 drooping]. Prolapse of the uvula, 

 ionorrhaphia (si-on-or-af-e-ah) [k'iuv, the uvula; 



a suture] . See Staphylorrhaphy. 

 ionotome (si-on f -o-tom) [/ciwv, the uvula ; rou6c, cut- 

 ting]. An instrument for cutting off the uvula, 

 ionotomy (si-on-of -o-me) \kiuv, uvula; tour,, a sec- 

 tion]. Incision of the uvula. 



ircinate {sir'-sin-at) \circinatus, circular] . In biology, 

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

 tion. See Wandering Rash. 



rcinus (sir* -sin-us) [jiipiuvog, circle]. Herpes zoster ; 

 zona. 



rcle (sir'-kl) [nipicor , a circle]. A ring ; a line, even- 

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

 center. C. of Diffusion. SeeDiffusion. 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 



carotids and middle and posterior cerebral arteries pos- 

 teriorly, by communicating vessels. 



Circle of Willis. 

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

 tero- median perforating. 4. Posterior cerebral artery. 

 5. Superior cerebellar artery. 6. Anterior inferior cerebellar 

 artery. 7. Anterior communicating artery- 8. Anterolateral 

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

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

 cerebelli cut. 



Circuit (se^ -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-ku-la-' 'shun) \circulatio, a circular 

 course]. The passage of the blood through various 

 vessels ; 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 another 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 supplving the a. Right, b, left auricle. A. Right, 

 blood the feeder. The B left ventricle. 1. Pulmonary 

 J . . .. , arterv. 2 Aorta. /. Areaofpul- 

 expenment is ot little m0 nary circulation. K. Upper 

 value. C, Collateral, area of svstemic circulation- 

 that through branches G , Lower area of systemic dr- 

 , j . 1 culation. o. The superior \ena 



and secondary channels cava w . Inferior vena cava, d, 

 after stoppage of the d. Intestine, m Mesenteric ar- 



principal route. C, l A er V "■ ? OTt * 1 vel /l L ; ^ er - 

 V, „. K , . . . ' h. Hepatic vein. (Landots.) 



Fetal, that of the H 



fetus, including the circulation through the placenta 



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