Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

D1 Fall Anatomy > 10/23: Small Intestine and Colon > Flashcards

10/23: Small Intestine and Colon Flashcards

1
Q

What makes up the small intestine?

A

Duodenum, jejunum, and ileum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What makes up the colon?

A

Cecum
Appendix
Ascending colon
Transverse Colon
Descending colon
Sigmoid colon

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What in the small intestine is mesenteric?

A

Jejunum and ileum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Describe the mesenteries of the duodenum

A

1st segment mesenteric
2-4th are secondarily retroperitoneal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

How long is the duodenum?

A

About a foot long

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What makes up the mucosal lining of the duodenum?

A

Many plicae circularies

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

How large is the jejunum?

A

2/5 of intestine beyond the duodenum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Where does the jejunum start and fill up?

A

Starts at duodenojejunal junction and fills up most of left side

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is the mucosal lining of the jejunum?

A

Small amount of spread out plicae circularies

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

How large is the ileum?

A

Remaining 3/5 beyond the duodenum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What does the ileum plug ito?

A

Cecum at ileocecal junction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Where is the cecum located?

A

At lower right quadrant, first part of the large intestine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is the mucosal lining of the ileum?

A

Absence of plicae circularies
Smooth wall which contains lymphoid tissue

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What does the colon (large intestine) consist of?

A

Cecum, appendix, ascending colon, transverse colon, and sigmoid colon

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What does the colon contain?

A

Haustrae
Appendices Epiploicae
Taenia coli

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What are haustrae?

A

Marginal rims that gives colon scalloped appearance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What is the appendices epiploicae?

A

Functionless accumulated fat on outside of haustrae (enlarge as you travel towards sigmoid colon)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What is the taenia coli?

A

Longitudinal smooth muscle streaks found on outer surface of colon

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Be able to name the colon

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What does the cecum meet with?

A

Ileum at the first part of the large intestine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What is the appendix?

A

Outgrowth of cecum, found inferior to dudenojejunal junction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

How long is the ascending colon and where does it run?

A

8-10 inches
Vertically from lower right to upper right quadrant
Runs into liver and bends

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

What is the ascending colon bend called?

A

Hepatic flexure (right colic flexure)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Where does the. transverse colon run from?

A

Right to left side turns downwards when it gets to spleen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

What is the bend in the transverse colon called?

A

Splenic flexure (left colic flexure)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

Where does the descending colon run?

A

From upper left to lower left quadrant

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

Where does the sigmoid colon run from?

A

Lower left to the midline

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

What is the rectum?

A

End of sigmoid colon, experiences contact with outside world

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

What is the mid gut blood supply from?

A

Superior mesenteric artery

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

What is the jejunum supplied by?

A

Jejunal arteries forming anastomosing loops with vasa recta branches reaching the gut itself

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

What is the ileum supplied by?

A

Ileal arteries forming anastomosing loops with vasa recta branches reacting the gut itself

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

What is the lower ileum supplied by?

A

Ileocolic artery

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

What is the cecum supplied by?

A

Ileocolic artery

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

What is the ascending colon supplied by?

A

Right colic artery which runs perpendicular and has many branches that diverge to supply ascending colon and right colin flexure

35
Q

What is the transverse colon supplied by?

A

Middle colic artery (last 1/3 after transition supplied by ascending left colic artery where it forms last)

36
Q

Where does the superior mesentery artery run in?

A

Root of the mesentery toward the lower right quadrant

37
Q

Where does the middle colic artery run?

A

In transverse mesocolon

38
Q

What does the middle colic artery supply?

A

Transverse colon first 2/3

39
Q

Where does the right colic artery run?

A

Retroperitoneally

40
Q

What does the right colic artery supply?

A

Ascending colon

41
Q

Where does the intestinal branches (jejunal and ileal arteries) run?

A

Mesentary proper

42
Q

What does the ileocolic artery supply?

A

Cecum and lower ileum

43
Q

Where does the ileocolic artery run?

A

Retroperitoneally toward ileocecal junction

44
Q

What do jejunal and ileal arteries supply?

A

Jejunum and ileum

45
Q

What is the hind gut supply from?

A

Inferior mesenteric artery

46
Q

What does the hind gut blood supply come from?

A

Inferior mesenteric artery

47
Q

What is the descending colon supplied by?

A

Left colic artery

48
Q

What does the left colic artery (LCA) branch into?

A

Descending and ascending branches

49
Q

What is the sigmoid colon supplied by?

A

Sigmoid artery loops

50
Q

What is the rectum supplied by?

A

Superior rectal artery

51
Q

What runs between the jejunum and ileuM/

A

Mesentary proper

52
Q

What runs in the mesentary proper?

A

Intestinal branches (jejunal and ileal arteries)

53
Q

Where does the mesentary proper stop at?

A

Ileocecal junction because gut has now become secondarily retroperitoneal

54
Q

What happens when gut loses its mesentary?

A

It will take its blood supply with it
i.e., retroperitoneal parts of the GI tract are supplied by retroperitoneal A and V

55
Q

What mesentary contains middle colic artery?

A

Transverse colon

56
Q

What does the middle colic artery supply?

A

Transverse colon

57
Q

What is a triangular shaped mesentary attached to the appendix?

A

Mesoappendix

58
Q

What does the mesoappendix contain?

A

Appendicular artery (branch of ileocolic)

59
Q

What does the ileal branch turn into and supply?

A

Turns into mesentery proper; supplies the distal ileum

60
Q

What is the appendicular artery?

A

A mesenteric branch to the appendix (in the mesoappendix)

61
Q

What are the two branches of the superior mesenteric artery (SMA)?

A

Jejunum and ileum

62
Q

What does the jejunal artery loop into?

A

Smaller lops called arcades

63
Q

Describe the jejunal artery

A
  • 2 arcade rows
  • long vasa recti directly to organ wall
  • little fat in this area “light signs through mesentery”
64
Q

What does the ileal artery loop into?

A

Many smaller loops called arcades

65
Q

Describe the ileal artery

A

Describe the ileal artery
- 4 arcaede rows
- short vasa recti directly to organ wall
- lots of fat

66
Q

What does the inferior mesenteric artery (IMA) originate from?

A

The aorta at about L3 and is mostly retroperitoneal

67
Q

What artery is the mostly retroperitoneal?

A

Left colic artery

68
Q

What does the left colic artery become when it enters the transverse mesocolon?

A

Mesenteric to anastomose with middle colic (from SMA)

69
Q

What does the left colic artery supply?

A

Last 1/3 of transverse colon

70
Q

What does the majority of the left colic artery supply?

A

Descending colon

71
Q

What is secondary retriperitoneal?

A

Descending colon

72
Q

Where do the sigmoid arteries lie?

A

Within sigmoid mesocolon

73
Q

What arteries are mesenteric?

A

Sigmoid arteries

74
Q

What arteries are secondary retroperitoneal with the rectum?

A

Superior rectal artery

75
Q

What do superior rectal arteries supply?

A

Rectum

76
Q

What are inferior and superior mesenteric arteries anastomoses important for?

A

If arteriole blockage occurs, all areas can still be supplied

77
Q

What does the middle colic a. (SMA) anastomose with?

A

Left colic arteries (IMA) at the left colic flexure

78
Q

What does the ileocolic artery (SMA) anastomose with?

A

Right colic artery (SMA) near the ileocecal junction

79
Q

What does the sigmoid artery (IMA) anastomose with?

A

The superior rectal artery (IMA) at the transition from the sigmoid colon to the rectum

80
Q

Where are paramesenterics?

A

Posterior and superior to the mesentery proper

81
Q

Where are paracolic gutters?

A

On outside of large intestine curves

82
Q

What do paramesenteric and paracolic gutters provide?

A

Channels for infections within the abdominal cavity

83
Q

What is an example of a channel that a paramesenteric and paracolic gutter provide?

A

Pus from a burst appendix (lower right quadrant) can flow up with right paracolic gutter to form an abscess in the right hepatorenal recess

D1 Fall Anatomy (19 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions