22:
128:
140:
489:
397:
482:
390:
231:
475:
383:
498:
39:
105:
219:
86:
58:
43:
226:
65:
613:
311:
290:. The connection between its original position and its final position is the thyroglossal duct. This duct normally
72:
32:
618:
214:
529:
519:
54:
315:
267:
and its final position. It is located exactly mid-line, between the anterior 2/3 and posterior 1/3 of the
238:
287:
190:
456:
352:
539:
446:
585:
155:
149:
263:
anatomical structure forming an open connection between the initial area of development of the
79:
524:
428:
340:
145:
590:
575:
407:
172:
160:
365:
185:
534:
467:
375:
607:
264:
336:
21:
580:
299:
283:
275:
260:
132:
Duct not labeled, but arises nearest to region identified as 'pyramidal lobe')
514:
423:
415:
127:
344:
139:
567:
506:
438:
291:
244:
557:
549:
295:
282:
and descends to its final position taking a path through the tongue,
268:
165:
279:
202:
471:
379:
15:
144:
Pattern of the branchial arches. I-IV branchial arches, 1-4
310:
A thyroglossal duct that fails to atrophy is called a
566:
548:
505:
437:
414:
225:
213:
201:
196:
184:
179:
120:
46:. Unsourced material may be challenged and removed.
314:, a condition that may lead to the formation of a
483:
391:
8:
274:The thyroid gland starts developing in the
220:duct_by_E5.4.2.0.0.1.22 E5.4.2.0.0.1.22
490:
476:
468:
398:
384:
376:
335:Amos J, Shermetaro C (February 23, 2019).
138:
126:
106:Learn how and when to remove this message
327:
361:
350:
242:
117:
7:
302:but can remain open in some people.
44:adding citations to reliable sources
499:Development of the digestive system
14:
20:
31:needs additional citations for
1:
312:persistent thyroglossal duct
635:
237:
137:
125:
530:Tracheoesophageal septum
520:Buccopharyngeal membrane
337:"Thyroglossal Duct Cyst"
360:Cite journal requires
316:thyroglossal duct cyst
294:and closes off as the
239:Anatomical terminology
169:d Ductus thyreoglossus
457:Ultimopharyngeal body
306:Clinical significance
540:Hepatic diverticulum
447:Thyroid diverticulum
208:ductus thyreoglossus
40:improve this article
614:Human head and neck
406:Development of the
156:Tuberculum laterale
55:"Thyroglossal duct"
150:pharyngeal grooves
601:
600:
465:
464:
452:Thyroglossal duct
257:thyroglossal duct
253:
252:
248:
146:branchial pouches
121:Thyroglossal duct
116:
115:
108:
90:
626:
619:Human embryology
591:Cloacal membrane
576:Urorectal septum
492:
485:
478:
469:
408:endocrine system
400:
393:
386:
377:
370:
369:
363:
358:
356:
348:
332:
245:edit on Wikidata
173:Sinus cervicalis
161:Tuberculum impar
148:(inside) and/or
142:
130:
118:
111:
104:
100:
97:
91:
89:
48:
24:
16:
634:
633:
629:
628:
627:
625:
624:
623:
604:
603:
602:
597:
562:
544:
501:
496:
466:
461:
433:
410:
404:
374:
373:
359:
349:
334:
333:
329:
324:
308:
249:
175:
170:
168:
163:
158:
153:
133:
112:
101:
95:
92:
49:
47:
37:
25:
12:
11:
5:
632:
630:
622:
621:
616:
606:
605:
599:
598:
596:
595:
594:
593:
583:
578:
572:
570:
564:
563:
561:
560:
554:
552:
546:
545:
543:
542:
537:
535:Pancreatic bud
532:
527:
525:Rathke's pouch
522:
517:
511:
509:
503:
502:
497:
495:
494:
487:
480:
472:
463:
462:
460:
459:
454:
449:
443:
441:
435:
434:
432:
431:
429:Rathke's pouch
426:
420:
418:
412:
411:
405:
403:
402:
395:
388:
380:
372:
371:
362:|journal=
326:
325:
323:
320:
307:
304:
251:
250:
241:
235:
234:
229:
223:
222:
217:
211:
210:
205:
199:
198:
194:
193:
188:
186:Carnegie stage
182:
181:
177:
176:
143:
135:
134:
131:
123:
122:
114:
113:
28:
26:
19:
13:
10:
9:
6:
4:
3:
2:
631:
620:
617:
615:
612:
611:
609:
592:
589:
588:
587:
584:
582:
579:
577:
574:
573:
571:
569:
565:
559:
556:
555:
553:
551:
547:
541:
538:
536:
533:
531:
528:
526:
523:
521:
518:
516:
513:
512:
510:
508:
504:
500:
493:
488:
486:
481:
479:
474:
473:
470:
458:
455:
453:
450:
448:
445:
444:
442:
440:
436:
430:
427:
425:
422:
421:
419:
417:
413:
409:
401:
396:
394:
389:
387:
382:
381:
378:
367:
354:
346:
342:
338:
331:
328:
321:
319:
317:
313:
305:
303:
301:
297:
296:foramen cecum
293:
289:
285:
281:
277:
272:
270:
266:
265:thyroid gland
262:
261:embryological
258:
246:
240:
236:
233:
230:
228:
224:
221:
218:
216:
212:
209:
206:
204:
200:
195:
192:
189:
187:
183:
178:
174:
167:
166:Foramen cecum
162:
157:
151:
147:
141:
136:
129:
124:
119:
110:
107:
99:
88:
85:
81:
78:
74:
71:
67:
64:
60:
57: –
56:
52:
51:Find sources:
45:
41:
35:
34:
29:This article
27:
23:
18:
17:
451:
353:cite journal
330:
309:
288:neck muscles
273:
256:
254:
207:
102:
96:January 2021
93:
83:
76:
69:
62:
50:
38:Please help
33:verification
30:
197:Identifiers
608:Categories
581:Proctodeum
322:References
284:hyoid bone
276:oropharynx
66:newspapers
515:Stomodeum
424:Stomodeum
416:Pituitary
292:atrophies
152:(outside)
345:30085599
568:Hindgut
507:Foregut
439:Thyroid
298:before
278:in the
180:Details
80:scholar
586:Cloaca
558:Midgut
550:Midgut
343:
269:tongue
259:is an
82:
75:
68:
61:
53:
300:birth
280:fetus
243:[
232:77274
203:Latin
87:JSTOR
73:books
366:help
341:PMID
286:and
255:The
59:news
227:FMA
42:by
610::
357::
355:}}
351:{{
339:.
318:.
271:.
215:TE
191:14
171:e
164:c
159:b
154:a
491:e
484:t
477:v
399:e
392:t
385:v
368:)
364:(
347:.
247:]
109:)
103:(
98:)
94:(
84:·
77:·
70:·
63:·
36:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.