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Anatomy Module 5 > Colon > Flashcards

Colon Flashcards

0
Q

Wall is puckered into sacculations

A

Colon

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1
Q

Located from the distal end of the ileum to the anus

A

Colon

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2
Q

Function is absorption of fluid and solutes

A

Colon

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3
Q

Prevents reflux of chyme

Slows passage of ileal contents by sympathetic stimulation

A

Valves - located at ileocecal orifice

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4
Q

In the R iliac fossa, colon becomes what?

A

Cecum

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5
Q

Rests on iliacus and psoas major
Covered by peritoneum
Appendix arises
Large blind pouch

A

Cecum

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6
Q

Frequently contains the vermiform appendix

A

Retro-cecal recess

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7
Q

Commences fluid and electrolyte reabsorption

A

Colon

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8
Q

Blood supply of the colon

A

Ileo-colic artery

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9
Q

Superior branch of the ileo colic artery anastomoses with

A

R colic a

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10
Q

What branch of the ileo colic artery anastomoses with r colic a

A

Superior branch

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11
Q

Inferior branch of the ileo colic artery anastomoses with

A

SMA

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12
Q

What are the branches of the Inferior branch of ileo colic artery

A 
Ascending (colic) a
Ante cecal a
Poste cecal a
Ileal a
Appendicular a
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13
Q

Ileo colic vein drains to

A

SMV

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14
Q

What drains into the superior branch of the ileo colic vein

A

Ascending colic vein

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15
Q

What drains into the inferior branch of the ileo colic vein

A

Anterior and posterior cecal c
Ileal v
Appendicular v

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16
Q

Nodes in the ileo colic chain drains to

A

SM Nodes

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17
Q

Where ascending colon bends to the left and is the junction of ascending and transverse colon

A

R colic or hepatic flexure

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18
Q

Where bloodless surgery can be done

A

Paracolic gutter

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19
Q

Supplies the distal half of the ascending colon

A

R colic artery

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20
Q

Branch of the R colic a that anastomose with ileo colic a

A

Descending

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21
Q

Middle colic artery anastomose with what branch of the r colic a

A

Ascending

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22
Q

R colic vein drains to

A

SMV then Portal v

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23
Q

IMV drains to

A

Splenic v

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24
Q

Gasto colic trunk is composed of what vessels

A

SMV
R gastro epiploic v
Inferior pancreatico duodenal v

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25
Q

Lymph drainage of the ascending colon

A

Superior Mesenteric plexus

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26
Q

Colon: an inverted arch - 50 cm long

A

Transverse colon

27
Q

The transverse colon curves below the spleen as the __________. This is also the junction of the transverse and descending colon.

A

L colic or splenic flexure

28
Q

Transverse colon is attached to the diaphragm by

A

Phrenico colic ligament

29
Q

Transverse colon is attached to the greater curvature by

A

Gastro colic ligament

30
Q

Condition that is mistaken for free intraperitoneal gas

A

Chilaiditi syndrome

31
Q

Supplies the proximal 2/3 of transverse colon

A

SMA via Middle colic a

32
Q

Branch of the middle colic artery that anastomose with r colc a

33
Q

The L branch of the middle colic a anastomose with

34
Q

Supplies the distal third of transverse colon

A

Asc branch of L colic a

35
Q

Branches of the middle colic a drains to

A

Branches of middle colic v

36
Q

Middle colic v drains to

A

Direct: portal
Indirect: SMV

37
Q

Proximal 2/3 of the transverse colon is innervated by

38
Q

SYMPAthetic supply of the distal third of the transverse colon and descending colon is via

A

IM Plexus ONLY

39
Q

PARASYMPAthetic supply of the distal third of the transverse colon and the descending colon is via

A

IM Plexus AND 2nd-4th sacral segments

40
Q

Descends in the angle between psoas major and quadratus lomborum to the iliac crest - 25 cm long

A

Deacending colon

41
Q

Arterial supply of the descending colon

A

IMA via L colic branch

42
Q

Left branch of the L colic a anastomose with

A

Highest sigmoid artery

43
Q

L colic vein drains to

44
Q

Lymph drainage of descending colon

45
Q

Descending colon curves infero-medially to form a mobile loop and become

A

Sigmoid colon

46
Q

Where taenia coli terminates

A

Sigmoid colon

47
Q

Recto sigmoid junction

A

Termination of taenia coli indicates

48
Q

Sigmoid colon is mobile except where?

A

Middle part: vulvulus of sigmoid colon

49
Q

Disappear as longitudinal muscle of the colon broadens to form a complete layer in the rectum

A

Taenia coli

50
Q

Sigmoid colon ends where

A

L midline at level of S3

51
Q

Branch of IMA that supplies lower descending and sigmoid colon

A

Sigmoid arteries, usually 3-5

52
Q

Sigmoid arteries anastomose superiorly with _________ to form marginal arteries

A

Desc branch of L colic a

53
Q

Sigmoidal arteries anastomose inferiorly with

A

Superior rectal a

54
Q

True or False. Sigmoid arteries anastomose with each other

A

True. They form marginal arteries

55
Q

Drains sigmoid colon

A

Sigmoid veins to IMV to splenic to portal

56
Q

Lymphatic drainage of sigmoid colon

A

Sigmoid nodes in sigmoid mesocolon to intermediate colic LN to IM LN

57
Q

Sigmoid nodes drain to

A

IM nodes

- but may also drain to SM nodes

58
Q

Orad to L colic flexure, para and sypma fibers travel TOGETHER from

A

Abdominal Aortic Plexus

59
Q

ABORAD, sympa supply comes from

60
Q

ABORAD, parasympa fibers comes from

A

Both IM Plexus and via 2nd-4th sacral segments

61
Q

Distinct longitudinal branch of tenia coli

A

Mesocolic tenia
Omental tenia
Free tenia

62
Q

Sacculations of the wall of the colon between tenia

63
Q

Thickened bands of smooth muscle representing most of the longitudinal coat of the colon

A

Tenia coli

64
Q

Where tenia coli merge with each other to form a continuous layer around rectum

A

Rectosigmoid junction

65
Q

Cecum is bound to the abdominal wall by

A

Cecal folds

Anatomy Module 5 (11 decks)

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