Coluddyn bach

Mewn anatomeg rhan o'r bibell faeth (neu'r 'alimentary canal') ydy'r coluddyn bach, un o'r coluddion. Mewn bodau dynol ceir tair rhan i'r coluddyn bach: y dwode

Coluddyn bach
Coluddyn bach
Enghraifft o:math o organ, dosbarth o endidau anatomegol Edit this on Wikidata
Mathendid anatomegol arbennig Edit this on Wikidata
Rhan osystem dreulio, coluddion Edit this on Wikidata
Cysylltir gydastumog, coluddyn mawr, rectwm Edit this on Wikidata
Yn cynnwysdwodenwm, jejunwm, ilëwm Edit this on Wikidata
Dynodwyr
Freebase/M/0pf2k edit this on wikidata
Thesawrws y BNCF3768 edit this on wikidata
UMLS CUIC0021852 edit this on wikidata
Tudalen Comin Ffeiliau perthnasol ar Gomin Wicimedia

1: Y geg
2: Taflod
3: Tafod bach
4: Tafod
5: Dannedd
6: Chwarennau poer
7: Isdafodol
8: Isfandiblaidd
9: Parotid
10: Argeg (ffaryncs)
11: Sefnig (esoffagws)
12: Iau (Afu)
13: Coden fustl
14: Prif ddwythell y bustl
15: Stumog
 16: Cefndedyn (pancreas)
17: Dwythell bancreatig
18: Coluddyn bach
19: Dwodenwm
20: Coluddyn gwag (jejwnwm)
21: Glasgoluddyn (ilëwm)
22: Coluddyn crog
23: Coluddyn mawr
24: Colon trawslin
25: Colon esgynnol
26: Coluddyn dall (caecwm)
27: Colon disgynnol
28: Colon crwm
29: Rhefr: rectwm
30: Rhefr: anws

Mewn anatomeg rhan o'r bibell faeth (neu'r 'alimentary canal') ydy'r coluddyn bach, un o'r coluddion. Mewn bodau dynol ceir tair rhan i'r coluddyn bach: y dwodenwm: y coluddyn gwag (neu'r 'jejunum') a'r iliwm. Mewn bodau dynol dyma lle mae'r rhan fwyaf o'r bwyd yn cael ei dreulio. Mewn oedolion, mae ei hyd oddeutu 7 metr:

Mae'n llawer hirach na'r coluddyn mawr, ond gelwir ef yn goluddyn bach oherwydd bod ei ddiamedr yn llai.

dde
Eginyn erthygl sydd uchod am anatomeg. Gallwch helpu Wicipedia drwy ychwanegu ato.

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