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29:
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525:, the small intestine is usually 6–7 m (20–23 ft) long (post mortem), about two-fifths of which (about 2.5 m (8.2 ft)) is the jejunum.
543:, which increase the surface area of tissue available to absorb nutrients from ingested foodstuffs. The epithelial cells which line these villi have
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The interior surface of the jejunum—which is exposed to ingested food—is covered in finger–like projections of mucosa, called
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739:. Once absorbed, nutrients (with the exception of fat, which goes to the lymph) pass from the enterocytes into the
690:
906:
Drake, Richard L.; Vogl, Wayne; Tibbitts, Adam W. M. Mitchell; illustrations by
Richard; Richardson, Paul (2005).
654:
The villi of the jejunum look like long, finger-like projections, and are a histologically identifiable structure.
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that increase the surface area for nutrient absorption. The plicae circulares are best developed in the jejunum.
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547:. The transport of nutrients across epithelial cells through the jejunum and ileum includes the
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991:
Guillaume, Jean; Praxis
Publishing; Sadasivam Kaushik; Pierre Bergot; Robert Metailler (2001).
518:
412:
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267:
233:
209:
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There is no line of demarcation between the jejunum and the ileum. However, there are subtle
402:
1561:
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1175:
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822:
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at the SUNY Downstate
Medical Center – "Abdominal Cavity: The Jejunum and the Ileum"
8:
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521:. The division between the jejunum and ileum is not anatomically distinct. In adult
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575:. The villi in the jejunum are much longer than in the duodenum or ileum.
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759:, the divisions of the small intestine are not as clear and the terms
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of small nutrient particles which have been previously digested by
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910:. Philadelphia: Elsevier/Churchill Livingstone. pp. 273–275.
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The lining of the jejunum is specialized for the absorption by
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in the jejunum is usually between 7 and 8 (neutral or slightly
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935:(5th ed.). Churchill Livingstone/Elsevier. p. 263.
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Wheater's functional histology : a text and colour atlas
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The jejunum has less fat inside its mesentery than the ileum.
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via the hepatic portal vein, where the blood is processed.
651:
The jejunum is typically of larger diameter than the ileum.
384:
140:
40:
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64:
956:
CRANE, RK (Oct 1960). "Intestinal absorption of sugars".
871:
657:
While the length of the entire intestinal tract contains
67:
625:
suspended in its mesentery. The jejunum has many large
621:(found in the ileum). However, there are a few jejunal
579:
705:
TEM image of mouse jejunum (14,000-fold magnification)
601:
which helps to move food along by a process known as
79:
486:. Its lining is specialized for the absorption by
70:
802:was frequently found to be void of food following
1763:
984:
593:which gives the bowel great mobility within the
1112:
994:Nutrition and Feeding of Fish and Crustaceans
798:." It was so called because this part of the
597:. It also contains circular and longitudinal
439:
931:Deakin, Barbara Young; et al. (2006).
924:
901:
899:
589:The jejunum and the ileum are suspended by
1119:
1105:
446:
432:
39:
27:
1051:"Oxford English Dictionary: jejune, adj"
896:
494:which have been previously digested by
1764:
930:
1100:
955:
45:Superior and inferior duodenal fossæ.
1093:at the SUNY Downstate Medical Center
13:
1023:
513:and is considered to start at the
14:
1783:
1061:
890:Merriam-Webster Online Dictionary
847:
515:suspensory muscle of the duodenum
767:may be used instead of jejunum.
750:
717:Dog jejunum (magnified 100-fold)
710:
698:
691:Transmission electron microscope
683:
253:
60:
831:is derived from the same root.
1043:
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949:
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864:
854:Essentials of Human Physiology
841:
669:that contain large numbers of
661:, only the ileum has abundant
613:The jejunum contains very few
1:
970:10.1152/physrev.1960.40.4.789
834:
505:The jejunum lies between the
775:
693:(TEM) image of human jejunum
608:
528:
317:Lower gastrointestinal tract
277:Upper gastrointestinal tract
7:
1367:Enterochromaffin-like cells
908:Gray's anatomy for students
722:
665:, which are unencapsulated
617:(found in the duodenum) or
16:Part of the small intestine
10:
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462:is the second part of the
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1068:Gastrolab.net:The Jejunum
850:"Section 6/6ch2/s6ch2_30"
810:activity relative to the
741:enterohepatic circulation
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1085:Anatomy photo:37:11-0100
997:. Springer. p. 31.
517:, a location called the
1691:External anal sphincter
1686:Intersphincteric groove
1681:Internal anal sphincter
1198:Pterygomandibular raphe
806:, due to its intensive
673:and immune cells, like
1472:Duodenojejunal flexure
1467:Minor duodenal papilla
1462:Major duodenal papilla
1213:Pharyngobasilar fascia
1208:Buccopharyngeal fascia
1129:gastrointestinal tract
519:duodenojejunal flexure
413:Anatomical terminology
408:Human digestive system
268:Gastrointestinal tract
234:Anatomical terminology
1429:Enteroendocrine cells
958:Physiological Reviews
403:Gastrointestinal wall
823:Early Modern English
783:is derived from the
1362:Gastric chief cells
1091:Anatomy image:7856
1078:2016-03-04 at the
875:2nd edition, 1989.
490:of small nutrient
472:higher vertebrates
418:Outline of anatomy
262:Major parts of the
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1751:Muscularis mucosa
1703:
1702:
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1613:epiploic appendix
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1457:Suspensory muscle
1419:Intestinal glands
1377:
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1024:Harper, Douglas.
942:978-0-443-068-508
917:978-0-8089-2306-0
848:Nosek, Thomas M.
635:plicae circulares
549:passive transport
456:
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1633:Transverse folds
1590:Descending colon
1580:Transverse colon
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1494:No substructures
1477:Brunner's glands
1407:Intestinal villi
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1287:Angular incisure
1203:Pharyngeal raphe
1171:retropharyngeal
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856:. Archived from
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615:Brunner's glands
557:active transport
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368:Descending colon
363:Transverse colon
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122:Digestive system
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1511:Ileocecal valve
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1127:Anatomy of the
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470:and most other
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964:(4): 789–825.
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146:Jejunal veins
144:
142:
138:
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130:
126:
123:
120:
118:
114:
111:
108:
104:
101:
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87:
58:
56:Pronunciation
54:
49:
42:
37:
30:
25:
20:
1671:Anal sinuses
1661:Anal columns
1486:
1439:Paneth cells
1434:Goblet cells
1400:Microanatomy
1327:Gastric pits
1191:prevertebral
1045:
1033:. Retrieved
1029:
1019:
1008:. Retrieved
993:
986:
961:
957:
951:
932:
926:
907:
888:
880:
870:
866:
858:the original
853:
843:
826:
820:
788:
780:
779:
764:
760:
754:
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642:histological
639:
612:
588:
577:
538:
504:
474:, including
459:
457:
328:
203:A05.6.03.001
178:
1666:Anal valves
1603:taenia coli
1599:Continuous
1424:Enterocytes
1273:Curvatures
1235:Sphincters
1035:15 November
808:peristaltic
794:, meaning "
729:enterocytes
671:lymphocytes
623:lymph nodes
603:peristalsis
571:, and most
561:amino acids
488:enterocytes
168:Identifiers
1721:Adventitia
1648:Anal canal
1412:Microvilli
1010:2009-01-09
835:References
825:adjective
545:microvilli
533:See also:
1736:Submucosa
1726:Subserosa
1228:Esophagus
1026:"jejunum"
792:(iēiūnus)
776:Etymology
631:submucosa
609:Histology
591:mesentery
551:of sugar
529:Structure
492:molecules
294:Esophagus
95:Precursor
1766:Category
1552:Appendix
1449:Duodenum
1076:Archived
978:13696269
812:duodenum
737:duodenum
723:Function
584:alkaline
569:vitamins
565:peptides
563:, small
555:and the
553:fructose
509:and the
507:duodenum
500:duodenum
480:reptiles
397:See also
351:Appendix
304:Duodenum
1638:Ampulla
1608:haustra
1487:Jejunum
1309:Pylorus
1277:greater
1266:Stomach
1162:Spaces
1158:Muscles
1150:Pharynx
796:fasting
790:jējūnus
781:Jejunum
771:History
765:mid-gut
735:in the
733:enzymes
633:called
629:in its
595:abdomen
573:glucose
498:in the
496:enzymes
476:mammals
460:jejunum
329:Jejunum
299:Stomach
289:Pharynx
191:D007583
179:jejunum
106:Part of
51:Details
22:Jejunum
1746:Mucosa
1717:Serosa
1625:Rectum
1304:Fundus
1294:Cardia
1282:lesser
1251:glands
1186:danger
1001:
976:
939:
914:
828:jejune
523:humans
482:, and
468:humans
378:Rectum
129:Artery
117:System
100:Midgut
1562:Colon
1544:Cecum
1503:Ileum
1383:Lower
1244:lower
1239:upper
1141:Upper
1133:mouth
816:ileum
804:death
787:word
785:Latin
745:liver
541:villi
511:ileum
484:birds
346:Cecum
334:Ileum
284:Mouth
238:[
174:Latin
162:vagus
153:Nerve
1709:Wall
1656:Anus
1299:Body
1256:crop
1037:2014
999:ISBN
974:PMID
937:ISBN
912:ISBN
821:The
814:and
757:fish
578:The
458:The
385:Anus
227:7207
215:2958
198:TA98
186:MeSH
141:Vein
966:doi
887:in
872:OED
763:or
755:In
586:).
559:of
466:in
222:FMA
210:TA2
1768::
1719:/
1028:.
972:.
962:40
960:.
898:^
852:.
818:.
605:.
580:pH
567:,
502:.
478:,
160:,
83:əm
77:uː
74:dʒ
65:dʒ
1120:e
1113:t
1106:v
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1013:.
980:.
968::
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920:.
893:.
677:.
447:e
440:t
433:v
242:]
86:/
80:n
71:ˈ
68:ɪ
62:/
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