Knowledge

Opisthotonus

Source 📝

40: 394:. Indeed, feeding the pigeons upon polished rice leads to an easily recognizable behavior of head retraction, a condition called opisthotonos. If not treated, the animals died after a few days. Administration of thiamine at the stage of opisthotonos led to a complete cure within 30 minutes. As no morphological modifications were observed in the brain of the pigeons before and after treatment with thiamine, Peters introduced the concept of a biochemical lesion. 244:. This marked extensor tone can cause infants to "rear backwards" and stiffen out as the mother or nurse attempts to hold or feed them. Individuals with opisthotonus are quite challenging to position, especially in wheelchairs and car seats. 568: 314:". This pose is also common in complete dinosaur skeletal fossils and it has been suggested that this is due to the animal drowning or being immersed in water soon after death. 646: 439: 639: 632: 1398: 39: 390:-deprived pigeons as a model for understanding how thiamine deficiency can lead to the pathological-physiological symptoms of 531: 446: 345:
caused by the loss of the balancing inhibitory counter-stimulus of corticoreticular fibers, which normally act upon the
1242: 139:
in which an individual's head, neck and spinal column enter into a complete "bridging" or "arching" position.
102: 1290: 155: 17: 1142: 1137: 241: 624: 1237: 1033: 335: 311: 272: 147: 1227: 825: 380: 201: 182: 174: 93: 612: 1249: 706: 1393: 1320: 788: 489: 475:"The opisthotonic posture of vertebrate skeletons: Postmortem contraction or death throes?" 342: 295: 268: 8: 1352: 1254: 1177: 572: 349: 331: 327: 114: 493: 1089: 1079: 1074: 983: 848: 746: 655: 513: 505: 369: 143: 77: 72: 1051: 577: 474: 411: 1069: 880: 838: 696: 686: 583: 373: 256: 248: 60: 517: 247:
Opisthotonus can be triggered by any attempt at movement, such as smiling, feeding,
1403: 1205: 1084: 1043: 731: 673: 497: 299: 291: 178: 52: 1347: 1280: 1217: 1192: 1182: 1172: 1159: 1149: 711: 535: 534:. James A. Baker Institute for Animal Health. Cornell University. Archived from 1337: 1300: 865: 853: 741: 726: 588: 284: 197: 132: 1387: 1372: 1315: 913: 803: 763: 716: 701: 365: 322:
Opisthotonus can be produced experimentally in animals by transection of the
276: 209: 162: 1310: 1127: 996: 991: 933: 918: 721: 681: 434: 432: 1357: 1332: 1232: 1200: 1167: 1123: 937: 858: 793: 768: 751: 607: 361: 341:
Severe "arching" (hyperextension) occurs due to stimulus by the anterior
280: 237: 560: 1295: 1113: 1108: 1099: 1028: 962: 952: 890: 813: 509: 429: 229: 136: 1367: 1327: 1305: 1285: 1259: 1222: 1210: 1118: 1061: 1038: 967: 957: 947: 928: 898: 870: 843: 778: 758: 65: 654: 501: 1264: 1104: 942: 923: 391: 387: 323: 305: 185: 1342: 1013: 252: 233: 225: 221: 205: 48: 220:
Opisthotonus is more pronounced in infants. Opisthotonus in the
1362: 1023: 908: 903: 875: 833: 691: 158: 1018: 1008: 360:
Opisthotonus is also described as a potential CNS symptom of
204:
or as a result of the severe muscular spasms associated with
170: 151: 798: 659: 346: 166: 126: 107: 310:
Opisthotonus is seen with drowning victims – called the "
468: 466: 463: 550: 120: 196:Opisthotonus is a symptom of some cases of severe 181:, among existing animals; it is observed in some 1385: 473:Faux, Cynthia Marshall; Padian, Kevin (2007). 640: 255:. A similar tonic posturing may be seen in 647: 633: 472: 386:Sir Rudolph Peters, in Oxford, introduced 165:. It has been shown to occur naturally in 131:, 'tension') is a state of severe 38: 47:Opisthotonus in a patient suffering from 383:", a lethal genetic disorder in horses. 14: 1386: 306:Drowning and the "dinosaur death pose" 290:Opisthotonus with the presence of the 267:Opisthotonus can sometimes be seen in 251:, or by involuntary movement, such as 208:. It can be a feature of severe acute 628: 334:), which results in severing all the 532:"Lavender foal syndrome fact sheet" 24: 1399:Symptoms and signs: Nervous system 697:Festinating gait/Parkinsonian gait 25: 1415: 546: 1291:Overpronation/Flexible flat feet 355: 524: 404: 379:Opisthotonus is a symptom of " 376:, and cerebellar dysfunction. 317: 13: 1: 440:"The Berkeley Science Review" 397: 364:along with bizarre behavior, 742:Myopathic gait/Waddling gait 262: 127: 108: 7: 271:intoxication. It is a rare 212:, poisoning, and drowning. 175:boid inclusion body disease 10: 1420: 215: 121: 97: 1273: 1191: 1158: 1143:Lower motor neuron lesion 1138:Upper motor neuron lesion 1060: 976: 943:Myotonia / Pseudomyotonia 889: 824: 666: 658:relating to movement and 598: 554: 242:maple syrup urine disease 191: 71: 59: 46: 37: 32: 173:suffering from advanced 150:effect and is caused by 336:corticoreticular fibers 312:opisthotonic death pose 381:lavender foal syndrome 202:traumatic brain injury 1250:Boutonniere deformity 294:is also a symptom of 119:'behind' and 1321:Clasp-knife response 370:decerebrate rigidity 343:reticulospinal tract 296:strychnine poisoning 1353:Conversion disorder 1255:Swan neck deformity 1178:Locomotive syndrome 494:2007Pbio...33..201F 350:reticular formation 332:inferior colliculus 328:superior colliculus 144:extreme arched pose 1090:Spastic paraplegia 1080:Spastic paraplegia 1075:Periodic paralysis 984:Abnormal posturing 849:Dysdiadochokinesia 785:Asynchronous gait 747:Trendelenburg gait 707:Marche à petit pas 656:Signs and symptoms 599:External resources 298:and prussic acid ( 78:Abnormal posturing 1381: 1380: 1070:Flaccid paralysis 891:Abnormal movement 881:Hemimotor neglect 839:Cerebellar ataxia 789:Gunslinger's gait 687:Cerebellar ataxia 622: 621: 374:oculogyric crisis 257:Sandifer syndrome 179:placental mammals 118: 106: 83: 82: 27:Medical condition 16:(Redirected from 1411: 1085:Spastic diplegia 1052:Tonic immobility 1044:Waxy flexibility 988:Stooped posture 794:Hemiparetic gait 775:Asymmetric gait 674:Gait abnormality 649: 642: 635: 626: 625: 552: 551: 540: 539: 528: 522: 521: 479: 470: 461: 460: 458: 457: 451: 445:. Archived from 444: 436: 427: 426: 424: 422: 408: 300:hydrogen cyanide 292:risus sardonicus 130: 124: 123: 113: 111: 101: 99: 53:Sir Charles Bell 42: 30: 29: 21: 1419: 1418: 1414: 1413: 1412: 1410: 1409: 1408: 1384: 1383: 1382: 1377: 1348:Motion sickness 1281:Rachitic rosary 1269: 1218:Joint stiffness 1193:Range of motion 1187: 1154: 1150:Sleep paralysis 1134:General causes 1056: 972: 885: 820: 732:Vestibular gait 712:Propulsive gait 662: 653: 623: 618: 617: 594: 593: 563: 549: 544: 543: 530: 529: 525: 502:10.1666/06015.1 477: 471: 464: 455: 453: 449: 442: 438: 437: 430: 420: 418: 416:Merriam-Webster 410: 409: 405: 400: 358: 320: 308: 275:side effect of 265: 218: 194: 28: 23: 22: 15: 12: 11: 5: 1417: 1407: 1406: 1401: 1396: 1379: 1378: 1376: 1375: 1370: 1365: 1360: 1355: 1350: 1345: 1340: 1338:Astasia-abasia 1335: 1330: 1325: 1324: 1323: 1313: 1308: 1303: 1301:Bow-leggedness 1298: 1293: 1288: 1283: 1277: 1275: 1271: 1270: 1268: 1267: 1262: 1257: 1252: 1247: 1246: 1245: 1240: 1235: 1225: 1220: 1215: 1214: 1213: 1208: 1197: 1195: 1189: 1188: 1186: 1185: 1180: 1175: 1170: 1164: 1162: 1156: 1155: 1153: 1152: 1147: 1146: 1145: 1140: 1132: 1131: 1130: 1121: 1116: 1111: 1102: 1094: 1093: 1092: 1087: 1077: 1072: 1066: 1064: 1058: 1057: 1055: 1054: 1049: 1046: 1041: 1036: 1031: 1026: 1021: 1016: 1011: 1006: 1001: 1000: 999: 994: 986: 980: 978: 974: 973: 971: 970: 965: 960: 955: 950: 945: 940: 931: 926: 921: 916: 911: 906: 901: 895: 893: 887: 886: 884: 883: 878: 873: 868: 866:Sensory ataxia 863: 862: 861: 856: 854:Pronator drift 851: 846: 836: 830: 828: 822: 821: 819: 818: 817: 816: 808: 807: 806: 801: 796: 791: 783: 782: 781: 773: 772: 771: 766: 756: 755: 754: 749: 744: 736: 735: 734: 729: 727:Truncal ataxia 724: 719: 714: 709: 704: 699: 694: 689: 684: 676: 670: 668: 664: 663: 652: 651: 644: 637: 629: 620: 619: 616: 615: 603: 602: 600: 596: 595: 592: 591: 580: 564: 559: 558: 556: 555:Classification 548: 547:External links 545: 542: 541: 538:on 9 May 2008. 523: 488:(2): 201–226. 462: 428: 412:"opisthotonos" 402: 401: 399: 396: 366:hallucinations 357: 354: 319: 316: 307: 304: 285:metoclopramide 277:phenothiazines 273:extrapyramidal 264: 261: 240:, or the rare 217: 214: 198:cerebral palsy 193: 190: 148:extrapyramidal 133:hyperextension 81: 80: 75: 69: 68: 63: 57: 56: 51:. Painting by 44: 43: 35: 34: 26: 9: 6: 4: 3: 2: 1416: 1405: 1402: 1400: 1397: 1395: 1392: 1391: 1389: 1374: 1373:Dancing mania 1371: 1369: 1366: 1364: 1361: 1359: 1356: 1354: 1351: 1349: 1346: 1344: 1341: 1339: 1336: 1334: 1331: 1329: 1326: 1322: 1319: 1318: 1317: 1316:Hyperreflexia 1314: 1312: 1309: 1307: 1304: 1302: 1299: 1297: 1294: 1292: 1289: 1287: 1284: 1282: 1279: 1278: 1276: 1272: 1266: 1263: 1261: 1258: 1256: 1253: 1251: 1248: 1244: 1241: 1239: 1236: 1234: 1231: 1230: 1229: 1228:Hypermobility 1226: 1224: 1221: 1219: 1216: 1212: 1209: 1207: 1204: 1203: 1202: 1199: 1198: 1196: 1194: 1190: 1184: 1181: 1179: 1176: 1174: 1171: 1169: 1166: 1165: 1163: 1161: 1157: 1151: 1148: 1144: 1141: 1139: 1136: 1135: 1133: 1129: 1125: 1122: 1120: 1117: 1115: 1112: 1110: 1106: 1103: 1101: 1098: 1097: 1095: 1091: 1088: 1086: 1083: 1082: 1081: 1078: 1076: 1073: 1071: 1068: 1067: 1065: 1063: 1059: 1053: 1050: 1047: 1045: 1042: 1040: 1037: 1035: 1034:Joint locking 1032: 1030: 1027: 1025: 1022: 1020: 1017: 1015: 1012: 1010: 1007: 1005: 1002: 998: 995: 993: 990: 989: 987: 985: 982: 981: 979: 975: 969: 966: 964: 961: 959: 956: 954: 951: 949: 946: 944: 941: 939: 935: 932: 930: 927: 925: 922: 920: 917: 915: 914:Fasciculation 912: 910: 907: 905: 902: 900: 897: 896: 894: 892: 888: 882: 879: 877: 874: 872: 869: 867: 864: 860: 857: 855: 852: 850: 847: 845: 842: 841: 840: 837: 835: 832: 831: 829: 827: 823: 815: 812: 811: 809: 805: 804:Antalgic gait 802: 800: 797: 795: 792: 790: 787: 786: 784: 780: 777: 776: 774: 770: 767: 765: 764:Steppage gait 762: 761: 760: 757: 753: 750: 748: 745: 743: 740: 739: 737: 733: 730: 728: 725: 723: 720: 718: 717:Stomping gait 715: 713: 710: 708: 705: 703: 702:Magnetic gait 700: 698: 695: 693: 690: 688: 685: 683: 680: 679: 677: 675: 672: 671: 669: 665: 661: 657: 650: 645: 643: 638: 636: 631: 630: 627: 614: 610: 609: 605: 604: 601: 597: 590: 586: 585: 581: 579: 575: 574: 570: 566: 565: 562: 557: 553: 537: 533: 527: 519: 515: 511: 507: 503: 499: 495: 491: 487: 483: 476: 469: 467: 452:on 2012-05-17 448: 441: 435: 433: 417: 413: 407: 403: 395: 393: 389: 384: 382: 377: 375: 371: 367: 363: 353: 351: 348: 344: 339: 337: 333: 329: 326:(between the 325: 315: 313: 303: 302:) poisoning. 301: 297: 293: 288: 286: 282: 278: 274: 270: 260: 258: 254: 250: 245: 243: 239: 235: 231: 227: 223: 213: 211: 210:hydrocephalus 207: 203: 199: 189: 187: 184: 180: 176: 172: 168: 164: 163:spinal column 160: 157: 153: 149: 145: 140: 138: 134: 129: 116: 110: 104: 95: 94:Ancient Greek 91: 87: 79: 76: 74: 70: 67: 64: 62: 58: 54: 50: 45: 41: 36: 31: 19: 1311:Hyporeflexia 1206:Bethlem sign 1173:Gowers' sign 1128:Quadruplegia 1004:Opisthotonus 1003: 997:Osteoporosis 992:Camptocormia 934:Hyperkinesia 919:Fibrillation 826:Coordination 779:Leaping gait 722:Spastic gait 692:Choreic gait 682:Scissor gait 606: 582: 567: 536:the original 526: 485: 482:Paleobiology 481: 454:. Retrieved 447:the original 419:. Retrieved 415: 406: 385: 378: 359: 356:Other causes 340: 321: 309: 289: 266: 246: 219: 195: 141: 90:opisthotonos 89: 86:Opisthotonus 85: 84: 33:Opisthotonus 18:Opisthotonic 1394:Neurotrauma 1358:Shell shock 1333:Hypnic jerk 1233:Gorlin sign 1201:Contracture 1168:Hemiparesis 1124:Tetraplegia 938:Hypokinesia 859:Dyssynergia 769:Toe walking 752:Pigeon gait 608:MedlinePlus 362:heat stroke 318:Vivisection 281:haloperidol 238:kernicterus 183:articulated 1388:Categories 1296:Knock-knee 1114:Hemiplegia 1109:Paraplegia 1100:Monoplegia 1096:Syndromes 1029:Hypertonia 963:Echopraxia 953:Stereotypy 814:Lotus gait 810:Deformity 584:DiseasesDB 456:2009-08-08 398:References 230:meningitis 161:along the 137:spasticity 1368:Catatonia 1328:Shivering 1306:Back knee 1286:Flat feet 1260:Scoliosis 1223:Ankylosis 1211:Club foot 1119:Triplegia 1062:Paralysis 1048:Grimacing 1039:Catalepsy 977:Posturing 968:Echolalia 958:Akathisia 948:Hypotonia 929:Myoclonus 899:Athetosis 871:Asterixis 844:Dysmetria 759:Foot drop 738:Muscular 263:Poisoning 236:, severe 224:may be a 188:fossils. 103:romanized 66:Neurology 61:Specialty 1265:Kyphosis 1160:Weakness 1105:Diplegia 924:Myokymia 518:86181173 392:beriberi 388:thiamine 330:and the 324:midbrain 253:seizures 186:dinosaur 109:opisthen 73:Symptoms 1404:Tetanus 1343:Vertigo 1014:Trismus 510:4500148 490:Bibcode 421:7 April 269:lithium 234:tetanus 226:symptom 222:neonate 216:Infants 206:tetanus 159:muscles 154:of the 117:  105::  98:ὄπισθεν 55:, 1809. 49:tetanus 1363:Stupor 1183:Ptosis 1024:Tetany 909:Tremor 904:Chorea 876:Abasia 834:Ataxia 613:003195 516:  508:  283:, and 249:speech 192:Causes 177:, and 171:snakes 146:is an 92:(from 1274:Other 1019:Cramp 1009:Spasm 589:31293 578:781.0 514:S2CID 506:JSTOR 478:(PDF) 450:(PDF) 443:(PDF) 167:birds 156:axial 152:spasm 142:This 128:tonos 122:τόνος 799:Limp 678:CNS 667:Gait 660:gait 573:9-CM 423:2015 347:pons 200:and 135:and 115:lit. 1243:HSD 1238:EDS 569:ICD 498:doi 228:of 88:or 1390:: 1126:/ 1107:/ 936:/ 611:: 587:: 576:: 512:. 504:. 496:. 486:33 484:. 480:. 465:^ 431:^ 414:. 372:, 368:, 352:. 338:. 287:. 279:, 259:. 232:, 169:, 125:, 112:, 100:, 96:: 648:e 641:t 634:v 571:- 561:D 520:. 500:: 492:: 459:. 425:. 20:)

Index

Opisthotonic

tetanus
Sir Charles Bell
Specialty
Neurology
Symptoms
Abnormal posturing
Ancient Greek
romanized
lit.
hyperextension
spasticity
extreme arched pose
extrapyramidal
spasm
axial
muscles
spinal column
birds
snakes
boid inclusion body disease
placental mammals
articulated
dinosaur
cerebral palsy
traumatic brain injury
tetanus
hydrocephalus
neonate

Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.