Knowledge

Cervical canal

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The external orifice is bounded by two lips, an anterior and a posterior. The anterior is shorter and thicker, though it projects lower than the posterior because of the slope of the cervix. Normally, both lips are in contact with the posterior vaginal wall. Prior to pregnancy, the external orifice
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The squamocolumnar junction of the cervix: The ectocervix, with its stratified squamous epithelium, is visible on the left. Simple mucinous columnar epithelium, typical of the endocervix, is visible on the right. A layer of
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moves into the cervical canal, and hence the distal part of the cervical canal may be lined by stratified squamous epithelium (conforming to a "type 3 transformation zone").
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The cervical canal is generally lined by "endocervical mucosa" which consists of a single layer of mucinous columnar epithelium. However, after menopause, the functional
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about midway between the apex and base. The external orifice of the uterus is a small, depressed, somewhat circular opening on the rounded extremity of the
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The wall of the canal presents an anterior and a posterior longitudinal ridge, from each of which proceed a number of small oblique columns, the
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are adenocarcinomas, differentiation of endocervical adenocarcinoma and endometrial adenocarcinomas is required, as the treatment differs.
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Jordan, J.; Arbyn, M.; Martin-Hirsch, P.; Schenck, U.; Baldauf, J-J.; Da Silva, D.; Anttila, A.; Nieminen, P.; Prendiville, W. (2008).
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The folds on the two walls are not exactly opposed, but fit between one another so as to close the cervical canal.
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can arise. Endocervical adenocarcinoma, like cervical cancer (squamous cell carcinoma), often arises in the
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Beckmann, Charles R B A; Herbert, William; Laube, Douglas; Ling, Frank; Smith, Roger (March 2013).
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International Federation for Cervical Pathology and Colposcopy (IFCPC) classification. References:
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Knowledge articles incorporating text from the 20th edition of Gray's Anatomy (1918)
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Canal of the cervix, endocervical canal, cervical canal of uterus, cavity of cervix
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is often helpful in this regard, endocervical adenocarcinomas are typically
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Yeh, IT.; LiVolsi, VA.; Noumoff, JS. (Mar 1991). "Endocervical carcinoma".
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Type 3: Endocervical component, not fully visible (common after menopause).
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Type 2: Endocervical component but fully visible (common before puberty).
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has a rounded shape when viewed through the vaginal canal (as through a
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Type 1: Completely ectocervical (common under hormonal influence).
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of an adenocarcinoma that arose from the endocervical mucosa.
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the uterine cervix 10: 1668: 579:Female reproductive system 279:Transformation zone types: 172: 165:to the main cavity of the 1571: 1505: 1489:External urethral orifice 1479:External sphincter muscle 1474:Internal urethral orifice 1459: 1290: 1283:Vestibular gland openings 1245:Posterior labial arteries 1171: 1153: 1104: 1083: 1058: 1020: 975: 910: 901: 862: 832: 789: 744: 696: 612: 603: 594: 585: 492:Obstetrics and Gynecology 131: 119: 107: 95: 83: 78: 70: 65: 56: 37: 32: 1403:Superficial dorsal veins 1393:Internal pudendal artery 1556:Uterine venous plexuses 1418:Internal pudendal veins 1216:Posterior labial nerves 294:squamocolumnar junction 1250:Posterior labial veins 1221:Anterior labial nerves 1050:Pubocervical ligaments 316: 133:Anatomical terminology 90:canalis cervicis uteri 1561:Vaginal venous plexus 1045:Uterosacral ligaments 356:progesterone receptor 307: 1604:Uterotubal junctions 1206:Posterior commissure 1071:Urogenital diaphragm 960:Supravaginal portion 882:Vesicular appendages 847:Suspensory ligaments 791:Fallopian tubes 329:human papillomavirus 1599:Vesicouterine pouch 1350:Commissure of bulbs 1315:Suspensory ligament 1201:Anterior commissure 824:Intramural segments 704:Germinal epithelium 688:Perivitelline space 336:endometrial cancers 161:which connects the 1594:Rectouterine pouch 1320:Fundiform ligament 1136:Support structures 1091:Bartholin's glands 1040:Cardinal ligaments 852:Pampiniform plexus 683:Membrana granulosa 372:Cervical pregnancy 317: 48:and upper part of 44:Posterior half of 1612: 1611: 1501: 1500: 1497: 1496: 1408:Deep dorsal veins 1388:Arteries of bulbs 1332:Corpora cavernosa 1255:Interlabial sulci 1196:Labiocrural folds 1149: 1148: 1084:Vestibular glands 1079: 1078: 897: 896: 864:Wolffian vestiges 842:Ovarian ligaments 785: 784: 661:Follicular antrum 352:estrogen receptor 265:connective tissue 238:arbor vitae uteri 169:in most mammals. 147: 146: 142: 16:(Redirected from 1659: 1629: 1628: 1620: 1516:Ovarian arteries 1449:Tunica albuginea 1211:Dartos muliebris 1169: 1168: 1160: 1159: 908: 907: 719:Cumulus oophorus 709:Tunica albuginea 666:Follicular fluid 610: 609: 601: 600: 592: 591: 572: 565: 558: 549: 548: 542: 541: 518:Pathol Res Pract 513: 507: 506: 486: 480: 479: 453: 428: 412: 386: 385: 276: 259: 199:ostium of uterus 139:edit on Wikidata 136: 61: 42: 30: 29: 21: 1667: 1666: 1662: 1661: 1660: 1658: 1657: 1656: 1637: 1636: 1635: 1623: 1615: 1613: 1608: 1589:Perineal sponge 1584:Urethral sponge 1567: 1536:Spiral arteries 1493: 1455: 1378:Dorsal arteries 1355:Pars intermedia 1286: 1272:Vaginal orifice 1145: 1100: 1075: 1054: 1035:Broad ligaments 1030:Round ligaments 1016: 971: 893: 872:Gartner's ducts 858: 828: 781: 740: 692: 581: 576: 546: 545: 524:(2–3): 129–44. 514: 510: 503: 487: 483: 429: 417: 415: 413: 409: 383: 380: 368: 302: 290: 289: 288: 287: 286: 284: 282: 280: 277: 269: 268: 260: 249: 189:) and with the 175: 143: 52: 28: 23: 22: 15: 12: 11: 5: 1665: 1655: 1654: 1649: 1634: 1633: 1610: 1609: 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807: 805: 802: 800: 797: 796: 794: 792: 788: 778: 775: 773: 770: 768: 767:Ootidogenesis 765: 763: 760: 758:Oocytogenesis 757: 755: 752: 751: 749: 747: 743: 737: 734: 732: 729: 725: 722: 720: 717: 716: 715: 712: 710: 707: 705: 702: 701: 699: 695: 689: 686: 684: 681: 679: 676: 674: 671: 667: 664: 663: 662: 659: 655: 652: 650: 647: 646: 645: 642: 638: 635: 633: 630: 628: 627:Hemorrhagicum 625: 624: 623: 620: 619: 617: 615: 611: 608: 606: 602: 599: 597: 593: 590: 588: 584: 580: 573: 568: 566: 561: 559: 554: 553: 550: 539: 535: 531: 527: 523: 519: 512: 504: 502:9781451144314 498: 494: 493: 485: 477: 473: 469: 465: 461: 457: 452: 447: 443: 439: 438:Cytopathology 435: 426: 425: 420: 411: 407: 404: 403: 400: 397: 395: 391: 390:public domain 373: 370: 369: 363: 361: 357: 353: 350:positive and 349: 345: 341: 337: 332: 330: 326: 322: 314: 310: 306: 297: 295: 275: 266: 258: 244: 241: 239: 235: 234:palmate folds 230: 228: 225:). Following 224: 218: 216: 212: 208: 204: 200: 196: 192: 188: 184: 180: 170: 168: 164: 160: 156: 152: 140: 134: 130: 127: 124: 122: 118: 115: 112: 110: 106: 103: 100: 98: 94: 91: 88: 86: 82: 77: 73: 69: 64: 60: 55: 51: 47: 41: 36: 31: 19: 1551:Uterine vein 1506:Blood supply 1233:Labia minora 1186:Labia majora 944: 736:Retia ovarii 713: 621: 521: 517: 511: 491: 484: 441: 437: 422: 410: 401: 387: 381: 333: 318: 291: 242: 240:is applied. 237: 233: 231: 219: 206: 202: 198: 194: 186: 182: 176: 150: 148: 102:A09.1.03.018 89: 1007:Parametrium 1000:Perimetrium 990:Endometrium 955:External os 950:Internal os 809:Infundibula 331:infection. 203:external os 187:internal os 79:Identifiers 1641:Categories 1181:Mons pubis 1141:Epithelium 1012:Epithelium 995:Myometrium 889:Paroophora 378:References 362:negative. 309:Micrograph 227:childbirth 1512:Arteries 1374:Arteries 1260:Vestibule 1022:Ligaments 877:Epoophora 834:Ligaments 746:Oogenesis 614:Follicles 460:0956-5507 394:page 1260 313:Pap stain 300:Pathology 247:Histology 1368:Frenulum 1292:Clitoris 1238:Frenulum 1155:External 1129:Fornices 814:Fimbriae 804:Ampullae 754:Oogonium 637:Albicans 587:Internal 476:16462929 468:19040546 366:See also 360:vimentin 334:As most 223:speculum 193:via the 181:via the 1631:Anatomy 1461:Urethra 1424:Nerves 1059:General 935:Isthmus 911:Regions 731:Medulla 654:Interna 649:Externa 605:Ovaries 538:2067992 207:isthmus 173:Anatomy 157:of the 71:Synonym 66:Details 1617:Portal 1579:G-spot 1542:Veins 1452:Septum 1445:Fascia 1399:Veins 1364:Corona 1106:Vagina 1066:Glands 977:Layers 940:Cervix 928:Fundus 923:Cavity 903:Uterus 799:Isthmi 762:Oocyte 724:Stroma 714:Cortex 644:Thecae 632:Luteum 622:Corpus 596:Adnexa 536:  499:  474:  466:  458:  402:(1918) 325:milieu 215:cervix 211:uterus 191:vagina 167:uterus 163:vagina 159:cervix 50:vagina 46:uterus 1572:Other 1360:Glans 1344:Angle 1310:Bulbs 1305:Crura 1277:Hymen 1265:Fossa 1173:Labia 1164:Vulva 1124:Walls 1119:Rugae 1114:Canal 967:Horns 945:Canal 819:Ostia 772:Ootid 697:Other 472:S2CID 392:from 155:canal 137:[ 126:86485 85:Latin 1327:Body 1300:Root 985:Wall 918:Body 777:Ovum 534:PMID 497:ISBN 464:PMID 456:ISSN 358:and 346:and 185:(or 149:The 114:3515 97:TA98 526:doi 522:187 446:doi 348:p16 344:CEA 327:of 201:or 121:FMA 109:TA2 1643:: 532:. 520:. 470:. 462:. 454:. 442:19 440:. 436:. 430:- 421:. 354:, 1619:: 571:e 564:t 557:v 540:. 528:: 505:. 478:. 448:: 427:. 416:- 315:. 197:( 141:] 20:)

Index

Internal orifice of the uterus

uterus
vagina

Latin
TA98
A09.1.03.018
TA2
3515
FMA
86485
Anatomical terminology
edit on Wikidata
canal
cervix
vagina
uterus
uterine cavity
vagina
uterus
cervix
speculum
childbirth

connective tissue

squamocolumnar junction

Micrograph

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