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UNIT 5 GI > P5 ANATOMY OF COLON,RECTUM ,ANAL CANAL > Flashcards

P5 ANATOMY OF COLON,RECTUM ,ANAL CANAL Flashcards

1
Q

name the 9 regions of large intestine

A

Appendix
cecum
Ascending colon
right colic flexure
Transverse colon
left colic flexure
Descending colon
Sigmoid colon
rectum

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2
Q

Length of cecum

A

5 cm

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3
Q

Length of ascending

A

10 cm

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4
Q

length of transverse colon

A

50 cm

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5
Q

Length of descending

A

10 cm

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6
Q

Length of sigmoid

A

50 cm

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7
Q

Length of rectum

A

15

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8
Q

Length of anal canal

A

4 cm

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9
Q

mention the 3 teniae coli

A

omental tenia
mesocolic tenia
free tenia

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10
Q

what type of muscle forms teniae coli

A

Longitudinal bands of smooth muscles

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11
Q

taeniae commences at

A

Appendix

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12
Q

teniae ends at

A

rectosigmoid junction

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13
Q

widest site

A

cecum

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14
Q

width of cecum

A

8 cm

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15
Q

width of cecum makes it more prone to

A

Perforation

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16
Q

Narrowest

A

sigmoid colon

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17
Q

width of sigmoid colon

A

4 cm

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18
Q

width of sigmoid colon makes it more prone to

A

Obstruction

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19
Q

rectum begins at which vertebral level

A

S 3 level

20
Q

sigmoid arteries arise from

A

Inferior mesenteric artery

21
Q

Anterior relations of rectum in males

A

seminal vesicle , apex of prostate

22
Q

Anterior relations of rectum in females

A

uterus

23
Q

Posterior relations of rectum

A

sacrum

24
Q

Superior rectal artery formed by anastomoses

A

branches of IMA that supplies sigmoid

25
Q

superior rectal vein belongs to

A

portal system

26
Q

middle & inferior rectal veins belongs to

A

caval system

27
Q

what artery is formed by anastomoses of sup. & inf. mesenteric arteries

A

marginal artery of drummond

28
Q

marginal artery extends from …….. to ………

A

from ileocecal junction
to rectosigmoid junction

29
Q

lymphatic drainage of large intestines

A

Epicolic , paracolic , mesocolic LNs

30
Q

origin of appendicular artery

A

ileocolic artery

31
Q

most common position of appendix

A

retrocecal

32
Q

Sympathetic afferent nerves of appendix arises from

A

T10 segment

33
Q

what part of levator ani muscle maintains the recto-anal bend

A

puborectalis

34
Q

line that separates the upper and lower portions

A

Pectinate line

35
Q

line between lower portion of hindgut and skin

A

anocutaneous line

36
Q

nerve supplying internal anal sphincter

A

Inferior hypogastric plexus

37
Q

nerve supplying external sphincter

A

pudendal nerve

38
Q

upper part of anal canal will be sensitive to

A

Stretch

39
Q

sup. rectal vein will drain into

A

portal vein

40
Q

lower part of anal canal will be sensitive to

A

pain

41
Q

middle &Inferior rectal vein will drain into

A

IVC

42
Q

upper part of anal canal will drain lymph into

A

internal iliac

43
Q

lower part of anal canal drain lymph into

A

Superficial inguinal

44
Q

Artery supplying upper part

A

middle rectal artery

45
Q

Artery supplying lower part

A

Inferior rectal artery

UNIT 5 GI (34 decks)

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